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Model Library:2025-02-08 Updated:A.I. model including DeepSeek is online for auto reply question page
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25-06-28 16:30:14
Wilson Edwards
Reply:3
Post_ID:829370google adsense
as TitlePlease advise
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25-06-28 16:00:17
Wilson Edwards
Reply:0
Post_ID:829369googles adsense
As TitlePlease advise
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25-06-27 11:44:47
Wilson Edwards
Reply:2
Post_ID:829367googleads;drive traffic;adsense
I read some outside third-party company to prompt driving web traffic to my website to increase my google adsense revenue.How are they able to do ?During driving traffice to my website, it will create google adsense impression or not ?Google will treat that impression is invalid ?Please advise
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25-06-27 11:02:02
Wilson Edwards
Reply:0
Post_ID:829368googleads;invalid traffic
I read some outside third-party company to prompt driving web traffic to my website to increase my google adsense revenue.How are they able to do ?During driving traffice to my website, it will create google adsense impression or not ?Google will treat that impression is invalid ?Please advise
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25-05-05 20:08:11
test test
Reply:3
Post_ID:829366googlebot;crawler;cloudflare
Accept
How my website can use cloudflare with"Under Attack Mode" and be able to allow goolge bot, crawler to crawl my website pages at the same time ?Please advise
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25-04-17 16:26:31
Wilson Edwards
Reply:1
Post_ID:829365css;html
Accept
as title Please advise
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25-04-14 19:42:56
Wilson Edwards
Reply:5
Post_ID:829364javascript
Accept
Please adviseThanks
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25-04-14 01:47:39
Wilson Edwards
Reply:2
Post_ID:829363javascript
I have set iframe addEventListener with mousedown event, it works becoz the iframe source is same domain ofthe current page..For example<iframe id=''myiframe" src='https://samedomian.com//test.html'></iframe><script>document.getElementById("myiframe").addEventListener('mousedown, function () {console.log('mousedown event detected');});</script>But when I change iframe src to external domain or cross-domin such as https://example.comit doesn't work, the reason it is blocked by cross-dmain policyAny mothed to solve this issue, how to detect mousedown event on iframe ?
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25-04-14 01:22:51
Wilson Edwards
Reply:2
Post_ID:829362javascript
For example, I have a link in DIV-A tag now I can not click the link in DIV-A because it is covered by DIV-B I want to click the link DIV-A anyway. I tried this example, it work at https://computer28.com/learn/pointer-events.php Any other good example or other method to achieve this ? Please advise
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25-03-28 09:26:04
Wilson Edwards
Reply:5
Post_ID:829361google_drive;php;centos8
I would like to download all my google_drive files by using php program code onmy linux centos 8 system server, how to it ?How to get the google API key to start download for php program ?Since the download file size is very huge, how can I speed up the download the file ifits size is more 100G size ?Please advise
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25-03-12 23:38:28
Wilson Edwards
Reply:1
Post_ID:829360javascript;html;css
Accept
I would like to create child node inside of body tag and enclosing all elements inside body tagby javascript code;For example:Before:<html><body><div></div><a></a><span></span></body></html>After, if I would like to see this reuslt, creating new div tag enclose everything inside of body tag, new div tag 's id is new_child_nodeAfter:<html><body><div id='new_child_node'><div></div><a></a><span></span></div></html></body>Please advise
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25-03-03 21:46:28
test test
Reply:4
Post_ID:829359cloudflare;proxy;socket;python;centos 8;apache
I am using cloudflare to protect my website recently,but I have a page which is using python socket to send streaming data to visitor with 5000 portsuch as http://mywbesite.com:5000.Before using clouldflare, visitor can get data from port 5000, now after usingcloudflare, all visitors to my website can not get any data from port 5000.Now I pause cloudflare, the python socket port is working back again..The question is I would to like to keep all cloudflare service such as proxy but python socket port need to work for exception by cloudflare, how can I do that ?My Simple python socket code:from flask import Flask, render_template, request, session,jsonifyfrom flask_sse import ssefrom flask_socketio import SocketIO, emit, join_roomimport platformimport loggingfrom flask_cors import CORSimport socket....if __name__ == "__main__": app.run(host="0.0.0.0",debug=False, port=5000, ssl_context=("mycert")
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25-03-02 21:19:15
test test
Reply:3
Post_ID:829358cloudflare;VPN;proxy;linux;apache
My website is using cloudflare internt traffic protection.I am using php code to monitor all internet ip through chrome browser to my websitefor example, monitoring $_SERVER['HTTP_X_FORWARDED_FOR'] and$_SERVER['REMOTE_ADDR'];I try it in those different computers with different ISP ip, I found the result as followsCase-1 Computer A,$_SERVER['HTTP_X_FORWARDED_FOR']="51.58.202.19";$_SERVER['REMOTE_ADDR']="172.64.0.0"where51.58.202.19 is my Compuer A ISP ip and172.64.0.0 is cloudflare use proxy server to get the webpage for Computer A.Case-2 Computer B,$_SERVER['HTTP_X_FORWARDED_FOR']="61.85.102.11";$_SERVER['REMOTE_ADDR']="61.85.102.11"where61.85.102.11is my Compuer B ISP ip and$_SERVER['HTTP_X_FORWARDED_FOR']=$_SERVER['REMOTE_ADDR']My question is Why in case-1 Cloudflare will use proxy to get webapge for computer A butcloudfare don't use proxu to get wbepage for computer B in which both php ip is same from$_SERVER['HTTP_X_FORWARDED_FOR']=$_SERVER['REMOTE_ADDR'] ?Second question, in what condition ro when Cloudflare use proxy or not use proxy to get webpage for browser visitor?Final question isIf cloudflare use proxy , it mean visitors of Computer A, ISP IP maybe bot or maliciousor suspected IP , Can I release Google Ads on my webste and allow the vistior of Computer A to click the ads ? If the visitors click the ads, it mean the click is excuted from Computer A, ISP IP or from Cloudflare 's proxy IP ?Please advise
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25-03-02 12:50:13
test test
Reply:2
Post_ID:829357cloudflare;google chrome;apache
Question 1- Cloudflare show warning, too may redirect on chrome solvedAnswer: solved by removing all redirect from http to https since cloudflare will handleall redirect from http.Since in apahce httpd.conf, we added the following for http to https and except some directorybased on this linkhttps://stackoverflow.com/questions/5818146/how-to-force-rewrite-to-https-except-for-a-few-pages-in-apache#RewriteEngine on#RewriteCond %{SERVER_NAME} =computer28.com [OR]#RewriteCond %{SERVER_NAME} =www.computer28.com#RewriteRule ^https://%{SERVER_NAME}%{REQUEST_URI}[END,NE,R=permanent]#RewriteEngine on#RewriteCond %{HTTPS} =off#RewriteCond %{REQUEST_URI} !^\/local\/#RewriteCond %{REQUEST_URI} !^\/world\/#RewriteRule (.*)https://%{HTTP_HOST}/$1[L,R=301]#RewriteCond %{HTTPS} =on#RewriteCond %{REQUEST_URI} \/fid\/ [OR]#RewriteCond %{REQUEST_URI} \/php\/#RewriteRule (.*)http://%{HTTP_HOST}/$1[L,R=301]Comment it all, it works nowQuestion-2:How to Fix ERR_QUIC_PROTOCOL_ERROR Message in Chrome Browserwhen using cloudflareAnswer-2https://kinsta.com/knowledgebase/err_quic_protocol_error/https://www.hostinger.com/tutorials/how-to-fix-err-quic-protocol-errorchrome://net-internals/#dnsHTTP/3 Cheker:https://http3check.net/?host=computer28.comhttps://kinsta.com/knowledgebase/flush-dns/on Window 10:ipconfig /flushdns //clear all DNS cachingFinal, if still can not solve question-2, delete cloudflare account and then re-create new other account using other gmail accout to see any help from resetting all cloudflare default setting.Need to wait 1-day or 2-day. to see theERR_QUIC_PROTOCOL_ERROR will be sovledor not...If above answer can not be solved, any suggestion or solution to solve those those bothquestions,Please advise
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25-03-01 19:03:13
Wilson Edwards
Reply:2
Post_ID:829356centos 8
as title for the question, I read the link,https://devco.re/blog/2014/06/19/client-ip-detection/ it works , for php as following code., Any other method besides php code, to dectect the ip is real ip not VPN not TOR IP not proxy IP?<?php if(!empty($_SERVER['HTTP_CLIENT_IP'])){ $myip = $_SERVER['HTTP_CLIENT_IP']; }else if(!empty($_SERVER['HTTP_X_FORWARDED_FOR'])){ $myip = $_SERVER['HTTP_X_FORWARDED_FOR']; }else{ $myip= $_SERVER['REMOTE_ADDR']; } echo $myip; ?>
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25-03-01 17:56:38
Wilson Edwards
Reply:2
Post_ID:829355google ads;cloudflare
Google Ads can be shown if my website is using cloudflare protection ? and next question isCloudflare can protect my websie from Bot Fraud Click on my website Google Ads.My Cloudflare account is free version Cloudflare.Please advise
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25-02-28 00:17:59
Wilson Edwards
Reply:4
Post_ID:829354google;reCAPTCHA
I just created reCAPCHA fromg google site athttps://www.google.com/recaptcha/admin/createand following his instruction, created my first reCAPCHA html page such as follows<!DOCTYPE html><html lang="en"><head><script async defer src="https://www.google.com/recaptcha/api.js"></script></head><body><div class="g-recaptcha" data-sitekey="6LcIhOQqAAAAAGbMD-QaT-xjh9VYF87D7w6uMw4n"></div></body></html>The page is successful and show google reCAPCHA, but it will ask me to do image testCan I bypass the image test, just tick the I am not a rebot box only ?Please advise
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25-02-26 04:32:58
Ty Yt
Reply:1
Post_ID:829353Linux apache
As tilte
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25-02-25 04:28:14
Wilson Edwards
Reply:2
Post_ID:829352centos;linux
I am using linux command, host, to check the revserse ip , some is not found but if I am using, online tool, that IP is normal, not abusive ipHow to check the IP is abusive ?
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25-02-23 19:30:17
Wilson Edwards
Reply:3
Post_ID:829351香港樓市;Hongkong housing price
Accept
香港樓市, 現在買 Okay ?
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25-02-23 17:06:22
Wilson Edwards
Reply:4
Post_ID:829348google adsense
Accept
my website server is new or small server, recently, just start up my server width Google Adsense ads into my site.DUring, these past 7-day, I get page view not much, but have 50 impression and 20 click dailyI check all my apache log file, those access to my wbesite is not too freqently, butToday Google banned my Google Adsense Account, including this time, Google already banned my site for 5-time.The reason is invalid traffic, I have already followed all rules from GooglePlease advise
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25-02-20 15:15:06
su e
Reply:1
Post_ID:829347excel vba 技術趨勢圖陰陽燭
excel vba 技術趨勢圖陰陽燭
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25-02-18 17:05:47
w kk
Reply:3
Post_ID:829345葵芳地鐵站葵涌廣場鋪位
葵芳地鐵站葵涌廣場鋪位
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25-02-18 16:46:59
w kk
Reply:1
Post_ID:829344why we use
as tile
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25-02-18 16:43:41
w kk
Reply:1
Post_ID:829343bitcoin
as title
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25-02-18 16:33:55
w kk
Reply:2
Post_ID:829342as title
Accept
as title
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25-02-15 21:18:40
Wilson Edwards
Reply:7
Post_ID:829340google;adsense;crawler
Accept
I just want disallow Google search indexing engine to access all my files and all my directories except some files such as index.php and music.png and let ads.txt can be crawled by Google Adsense Crawler Please advise
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25-02-12 00:53:08
Norton Alex
Reply:1
Post_ID:829260javascript
my question is same as the title And, I search it on internet, the closer one is this link https://stackoverflow.com/questions/3538021/why-do-we-use-base64 Any good article about this topic Regards
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25-02-12 00:48:17
Wilson Edwards
Reply:2
Post_ID:829290window10/11;apache;centos;php;html
Accept
After clicking some Googe Ads and leave the ads site or delete the tab, your browser may forwards you to other site which may give you message such as "Congrulation,! You Get Prize, Bonus, Coupon.etc" Probably your browser is infected by virus and the Congurlation site is hacker /attacker virus site.. I will think the following methods to solve my problem, Please advise those methods are correct 1- Right away or now, remove the forwars site(Congrulation site) or delete such browser Tab 2- Look at this image: https://computer28.com/image/deletecache.jpg Delete or clean your chrome browser data At Chrome browser, Click Sitting->Privacy Security->Delete Browser Data, it will pop up window, in that window, Click Advanced->Select Time Range(All Time)->Tick all box below Time range such as Browsering History..etc. Click Delete Data button 3-If using Window 10, Turn on Microsoft Defender Virus Protection System, always turn it on https://carleton.ca/its/help-centre/how-to-enable-windows-defender-on-personal-pc/ You are better to install Microsoft Window 11 if u are using WIndow 10 4- Add X-Content-Type-Options: nosniff on header at my apache server
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25-02-12 00:32:47
Norton Alex
Reply:3
Post_ID:829339centos;apache;php;html
Accept
as title with the topic tag
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25-02-11 17:12:06
test test
Reply:2
Post_ID:829338centos;linux;A.I.
I would like to stop all A.I. access my website through VPN or TOR browser,How I know the A.I. is accesing into my website pagesPlease advise
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25-02-11 17:07:11
Wilson Edwards
Reply:1
Post_ID:829291javscript;google_cookie
For latest browser, u can only read cookie value by javascript code. Remove and Update cookie by javascript is very difficult...To read all cookie, u can go to devtool, Mouse Right-click->inspect->Application->Cookieu can see all website cookie u are accessing..You can remove all cookie for the website..by php codingFor example:<?phpif(isset($_SERVER['HTTP_COOKIE'])&&stripos("#".$_SERVER['QUERY_STRING'],'gt=3')>0){$cookies = explode(';', $_SERVER['HTTP_COOKIE']);foreach($cookies as $cookie) {$parts = explode('=', $cookie);$name = trim($parts[0]);setcookie($name, '', time()-1000,'computer28.com');setcookie($name, '', time()-1000, '/','computer28.com');setcookie($name, '', time()-1000,'.computer28.com');setcookie($name, '', time()-1000, '/','.computer28.com');}}if(stripos("#".$_SERVER['QUERY_STRING'],'gt=3')>0){header("location:https://computer28.com"); }?>On address bar with gt=3, it will forward to the main domain site,For update cookie,justsetcookie($name, ''', "the time you want for expire",'computer28.com');Hope it help
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25-02-11 16:38:06
Wilson Edwards
Reply:1
Post_ID:829337google search;SEO
I would like to set requirement to let google seach engine to index all my website pages, just allow some pages of my website can be indexed by Google..How I can setup the system or requirement for the pages selected to be indexed from robots.txt or sitemap ?Please advise
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25-02-11 11:25:10
Wilson Edwards
Reply:5
Post_ID:829335hongkong food
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25-02-10 21:49:16
Wilson Edwards
Reply:4
Post_ID:829336centos; bash
Accept
I am using bash linux shell, running ollama serve on CLI console is working, but when it can not work on cron job scheduler, why
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25-02-10 14:17:47
Wilson Edwards
Reply:5
Post_ID:829333php; html;javascript
Accept
In php script, if echo "<a></a>" it render as html elementas we understand it, but when doing in php, $str=htmlentities("<a></a>"); then $str=html_entity_decode($str); $str is not equal to "<a></a>", $str is string. why that is not HTML element
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25-02-09 20:46:03
Wilson Edwards
Reply:3
Post_ID:829332javascript;html5;css
Accept
as title with topic tagPlease advise
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25-02-09 10:49:51
Wilson Edwards
Reply:1
Post_ID:829325chrome;curl;php;python3.9
Accept
I would like to distinguish between those vistors are A.I. or real human to access my website.For example, some A.I. will use VPN and automaticlly access my website through, for example, curl or other methdos, I would like to block those A.I. auto crwaling IP and trafficPlease advise
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25-02-09 10:32:17
Wilson Edwards
Reply:1
Post_ID:829324javascript;html5;css
Accept
as title and topic tagPlease advise
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25-02-07 01:07:31
Wilson Edwards
Reply:0
Post_ID:829299gcc;linux
When upgrade gcc or lib, it will cause issue, and may cause reboot is not working for exmaple: https://blog.csdn.net/qq_39295044/article/details/86685789 su root Password: node: /lib64/libc.so.6: version `GLIBC_2.18' not found (required by /lib64/libstdc++.so.6) nvm is not compatible with the npm config "prefix" option: currently set to "" Run `nvm use --delete-prefix v16.20.2 --silent` to unset it. For example, running ------------------- node node: /lib64/libc.so.6: version `GLIBC_2.18' not found (required by /lib64/libstdc++.so.6) Or php php: /lib64/libc.so.6: version `GLIBC_2.18' not found (required by /lib64/libstdc++.so.6) after re-install glibc at /usr/local and run nvm use --delete-prefix v16.20.2 --silent` //for node other issue now ok, php and node but got some error when install python3.9 version rm -f /usr/local/glibc-2.18/build/stubs.h /usr/local/glibc-2.18/build/elf/sln /usr/local/glibc-2.18/build/elf/symlink.list rm -f /usr/local/glibc-2.18/build/elf/symlink.list test ! -x /usr/local/glibc-2.18/build/elf/ldconfig || LC_ALL=C LANGUAGE=C \ /usr/local/glibc-2.18/build/elf/ldconfig \ /lib64 /usr/lib64 LD_SO=ld-linux-x86-64.so.2 CC="gcc -B/usr/bin/" /usr/bin/perl scripts/test-insta llation.pl /usr/local/glibc-2.18/build/ /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../lib64/libm.so: undefined refe rence to `__strtod_nan@GLIBC_PRIVATE' /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../lib64/libm.so: undefined refe rence to `__strtof128_nan@GLIBC_PRIVATE' /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../lib64/libm.so: undefined refe rence to `__strtof_nan@GLIBC_PRIVATE' /usr/lib/gcc/x86_64-redhat-linux/4.8.5/../../../../lib64/libm.so: undefined refe rence to `__strtold_nan@GLIBC_PRIVATE' collect2: error: ld returned 1 exit status Execution of gcc -B/usr/bin/ failed! The script has found some problems with your installation! Please read the FAQ and the README file and check the following: - Did you change the gcc specs file (necessary after upgrading from Linux libc5)? - Are there any symbolic links of the form libXXX.so to old libraries? Links like libm.so -> libm.so.5 (where libm.so.5 is an old library) are wrong, libm.so should point to the newly installed glibc file - and there should be only one such link (check e.g. /lib and /usr/lib) You should restart this script from your build directory after you've fixed all problems! Btw. the script doesn't work if you're installing GNU libc not as your primary library! make[1]: *** [install] Error 1 make[1]: Leaving directory `/usr/local/glibc-2.18' make: *** [install] Error 2 Change libm.so link to 2.18 version Make sure glibc, libc.so libm.so is same version
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25-02-07 00:06:18
Wilson Edwards
Reply:6
Post_ID:829297python3;centos;deepseek
Accept
Could not install ollama from python3 install ollama...so try alternative ,using python3 install openai , but easy example python script still not working, , the error is such as AttributeError: module 'ollama' has no attribute 'chat' import ollam //or improt openai response = ollama.chat(model="deepseek-r1", messages=[ { "role":"user", "content":"how center a tag in a div tag by javascript" }, ]) print(response["message"]["content"]) OR next example: import os import openai openai.api_key = ("key") openai.ChatCompletion.create( model="gpt-3.5-turbo", messages=[ {"role": "user", "content": "Hello!"} ] ) print(completion.choices[0].message) // Error AttributeError: module 'ollama' has no attribute 'ChatCompletion' if use comand line ollama, it works > ollama server //need enable port 127.0.0.1:11434 > ollam run deepseek-r1 >>>>"chat" Any Advise ? Try to list all module : print(dir(ollama)) //No any moduel name, chat... Error: Command '['/home/..../venv/bin/python3.x', '-Im', 'ensurepip', '--upgrade', '--default-pip']' returned non-zero exit status 1 https://stackoverflow.com/questions/24123150/pyvenv-3-4-returned-non-zero-exit-status-1 Reference: https://cristianzsh.medium.com/installing-and-using-deepseek-ai-c7fd97332e0f https://stackoverflow.com/questions/2927993/where-are-the-python-modules-stored https://pypi.org/project/ollama/ https://python.langchain.com/docs/integrations/chat/ollama/ https://ollama.com/search https://hungchienhsiang.medium.com/error-could-not-find-a-version-that-satisfies-the-requirement-from-pip-install-f542143e705d https://ywctech.net/ml-ai/ollama-first-try/ https://github.com/ollama/ollama-python https://github.com/ollama/ollama
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25-02-05 00:23:20
Wilson Edwards
Reply:1
Post_ID:829298python
Accept
I try to upgrade my python version from 3.6 to 3.9 I also get ,glibc error /lib64/libm.so: undefined reference to `__strtod_nan@GLIBC_PRIVATE' and solved it ....just checked all glibc, libm , libc, all version is matched to , for exmaple.2.18version relink, ln -sfn /lib64/libm-2.18.so libm.so.6 //before is libm-2.31.so not matched https://stackoverflow.com/questions/59578152/undefined-reference-to-strtof128-nanglibc-private after the above error solved, I get other errorat make altinstall, got the errorerror _testembed.c:1767: undefined reference to `__gcov_indirect_call_profiler'just following the instruction as reference link Installation python 3.9 reference: https://phoenixnap.com/kb/how-to-install-python-3-centos-7 https://blog.csdn.net/liuruiaaa/article/details/130890408
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25-02-02 21:48:44
Wilson Edwards
Reply:0
Post_ID:829296virtualbox;macOS;window11
Read this link https://computer28.com/hk/article/install-macos-virtualbox.doc.php
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25-02-01 22:06:35
Wilson Edwards
Reply:0
Post_ID:829288python;javascript;simulation
Basic Concept: https://www.youtube.com/watch?v=IrbJYsep45E&t=663s https://www.youtube.com/watch?v=JOJ5zihcd6Q Google 's Willow Chip for quantum computing: https://www.youtube.com/watch?v=G3o4sPpGWFI https://www.youtube.com/watch?v=FgZ-8NFSysA&t=134s https://www.youtube.com/watch?v=CMO1MEeUcXg Shor's Algorithm: https://www.youtube.com/watch?v=FRZQ-efABeQ https://www.geeksforgeeks.org/shors-factorization-algorithm/ Simulator quantum computing by python: https://github.com/lvillasen/Quantum-Computer-Simulator IBM quantum simulator/platform for public: https://en.wikipedia.org/wiki/IBM_Quantum_Platform (Some region is blocked by IBM,u can use VPN from Chrome VPN Extension) Basic GCD, greatest common divisor: https://en.wikipedia.org/wiki/Greatest_common_divisor How it works: https://www.youtube.com/watch?v=g_IaVepNDT4&t=63s https://www.youtube.com/watch?v=c0D8X4eN_Cg&list=PLnK6MrIqGXsJfcBdppW3CKJ858zR8P4eP https://www.youtube.com/watch?v=XuN6sF8UGSw
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25-02-01 21:42:42
Norton Alex
Reply:1
Post_ID:829295javascript
Accept
my html page calling many javascript file, I worry, some function name will be double or over-written by each other. Any method to prevent this .Please advise;
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25-02-01 21:15:33
Norton Alex
Reply:2
Post_ID:829294javascript
Accept
I have seen a lot javascript file whcih starting with "!" character before functionWhat is the purpose of that ?For example;!function(x){a=x}()Please advise
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25-01-29 21:04:40
Wilson Edwards
Reply:4
Post_ID:829293javascript;python3;chrome
Visitors or users may open many page of website to get streaming data ,and they want to open many browser tabs to read different data. That will depend on your Laptop or mobile capiblity how can handle many new socket.io to run on multiple tab at the same time, If limited computer resouce or memory, you will be limited for number of browser tabs display.If u use socket with Redis /stream event that allow display directly into html page tab (just type https://yourdomain:5051/stream on address bar) or throught javascript parse data into html page but it may only allow 3 tabs running on the same time.How you can run it on many tabs ?-----------------------------------------------1-You can use localStorage(getItem or setItem) to share information between browser tabOr...you can use2-window.addEventListener('blur', notstream);window.addEventListener('focus', stream);When the user not read or not focus the tag, close the streaming socketio, then Whenthat users want to read it again and focus the tag, reconnect the socket. We know users only can read 1 tag at a time only,function notstrem(){souce.close();//close the socket.io}function stream(){//user focus the tab againrefresh();// re-run that funation u can stream data before}function refresh(){//Redisvar source = new EventSource("https://yourdomainsocket-site.com"+":5051/stream"); source.addEventListener('publish', function(event) {dataextract(event.data);if (typeof ws=='function')ws(event.data);if (typeof updatechart=='function')updatechart(event.data); }, false); source.addEventListener('error', function(event) { }, false);return source;}let source=null;jQuery(document).ready(function($) {console.log("onload");source=refresh();});
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25-01-23 19:49:42
Wilson Edwards
Reply:5
Post_ID:829292javascript;jquery;php
$(document).click(function(e) { // ####Check for left button if (e.button == 0) { // alert('clicked'); console.log('page......clicking'); checkhitrate('ads_hitrate');//check the document.activeElememnt source such as ifram or <a> tag }else {}});it works but can not detect mouse right click or mouse left click;so try to other code such as followsvar mouseleft=null;document.addEventListener('mousedown', function(event) { switch (event.button) { case 0: mouseleft=1; checkhitrate('ads_hitrate'); console.log('mouse Left button clicked.'); break; case 1: mouseleft=0; console.log('mouse Middle button clicked.'); break; case 2: mouseleft=0; console.log('mouse Right button clicked.'); break; case 3: mouseleft=0; console.log('mouse Browser Back button clicked.'); break; case 4: console.log('Browser Forward button clicked.'); break; default: console.log('Unknown button clicked.'); }});*/it is working ok, but not work if the content area with iframe...so we need use blur as followswindow.addEventListener('blur', notFocused);function notFocused() { localStorage.setItem('focus','0');setTimeout(()=>{$(window).focus();},200);checkhitrate('ads_hitrate');console.log('NOT focused',ia2++);return 0;}and check whether visitor leave current page to forward to other site, use this function becoz we can not idenity it is right or left click.if .onbeforeunload even is triggered it mean it is from left clickwindow.onbeforeunload=function(e){ console.log('hist-onbeforeunload'); localStorage.removeItem("stateHistoryonbeforeunload"); localStorage.setItem("stateHistoryonbeforeunload", 1);}event onbeforeunload should be earlier than checkrate();function checkhitrate(hitrate){ if (hitrate=='ads_hitrate')sendclick();}function sendclick(){if (document.activeElement.src) var tmp=document.activeElement.src ; else tmp=""if (document.activeElement.tagName === "IFRAME"){if (tmp.indexOf('client=ca-pub-')>0){setTimeout(()=>{console.log('notfocused _post3',"stateHistoryonbeforeunload",localStorage.getItem("stateHistoryonbeforeunload"));document.activeElement.blur(); if (localStorage.getItem("stateHistoryonbeforeunload")=="1"){_post3(url,JSON.stringify(obj),fun);localStorage.removeItem("stateHistoryonbeforeunload")}},200);}}Note: every click then clear last document.activeElement by document.activeElement.blur() so next check click will be working again
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24-12-31 23:06:18
Wilson Edwards
Reply:0
Post_ID:829289economy
https://www.investopedia.com/terms/t/trilemma.asp https://en.wikipedia.org/wiki/Trilemma Example Video: https://www.youtube.com/watch?app=desktop&v=pNlUmPZ1UC4 Any region is only able to do 2 options from the following 3 choices for itseconomy system at the same time, 3 choices: A=Independent monetary policy(獨立自主貨幣政策), B=fixed Exchange Rate(固定匯率) ,C=Free Flow of Capitial(資本自由流動)For example:USA: ACHongkong: BCChina:AB
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24-11-27 13:34:32
Wilson Edwards
Reply:2
Post_ID:829287yoututbe
Accept
as the title, which online site is the bestPlease advise
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Attachment:===
Need Help With Cross Domain AJAX
Asked by stuengelman
at 2024-08-03 23:54:57

Point:500 Replies:33 POST_ID:828696USER_ID:11589
Topic:
Microsoft Development;Internet Protocols;Web Browsers
Hello,
I am trying to do a Javascript AJAX call to an ASP Classic script hosted at another domain at a different host. My Javascript and ASP Classic script appear below. The basic idea is that the ASP Classic script reads a MySQL DB table and is intended to pass back information to display within a SPAN element in the calling web page, using querystring input from the Javascript to determine which DB table record to work with.
I've tested the ASP Classic script by invoking it directly from its host in my browser, and it works perfectly. I've also set up headers in the ASP Classic script to permit cross-domain AJAX when the calling Javascript is hosted at the operant domain.
The code fails to return any result in MSIE, Firefox, and Chrome. In MSIE, I get a runtime Javascript error saying "permission denied."
Here is the Javascript code:
-------------------------------------------
function zip_onfocusout(inzip) {
var xmlhttp;
if (window.ActiveXObject) {//MSIE
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
} else {//Other Browsers
xmlhttp = new XMLHttpRequest();
}
xmlhttp.onreadystatechange=function() {
if (xmlhttp.readyState==4 && xmlhttp.status==200) {
document.getElementById("statedisplay").innerText=xmlhttp.responseText;
}
}
xmlhttp.open("GET","http://www.leadtothetop.com/getstate.asp?zip="+inzip,true);
xmlhttp.send();
}
Here is the ASP Classic Script:
-----------------------------------------------
<%@ Language=VBScript %>
<!--#include file="system/adovbs.inc"-->
<%Response.AddHeader "Access-Control-Allow-Methods","GET, OPTIONS"
Response.AddHeader "Access-Control-Allow-Credentials","true"
Response.AddHeader "Access-Control-Allow-Origin","http://www.legalhelprightnow.org, http://legalhelprightnow.org"
Response.AddHeader "Access-Control-Allow-Headers","*"
if isnumeric(Request.QueryString("zip")) and Request.QueryString("zip")<>"" then
set CN=server.CreateObject("ADODB.Connection")
CN.Open "dsn=" & application("dbodbcdsn"),application("dbusername"),application("dbpassword")
set RS=server.CreateObject("ADODB.Recordset")
SQL="select State from zipcodes where ZipCode=" & Request.QueryString("zip") & ";"
RS.Open SQL,CN,adOpenStatic,adLockReadOnly
if not RS.EOF then
Response.Write("(" & RS("State") & ")")
else
Response.Write("(State Not Found)")
end if
RS.Close
set RS=nothing
CN.Close
set CN=nothing
elseif Request.QueryString("zip")<>"" then
Response.Write("(Zip Not Valid)")
else
Response.Write("")
end if%>
The basic idea is that someone enters a zip code into a textbox on the calling page, and after moving mouse focus to the next control, the AJAX call is intended to fill a SPAN element with the associated two byte state abbreviation within parentheses.
Are my ASP classic headers wrong, or is something else causing the problem?
My PC is running Windows XP, and the ASP Classic host is running Windows 2008.
Thanks very much,
Stu Engelman
I am trying to do a Javascript AJAX call to an ASP Classic script hosted at another domain at a different host. My Javascript and ASP Classic script appear below. The basic idea is that the ASP Classic script reads a MySQL DB table and is intended to pass back information to display within a SPAN element in the calling web page, using querystring input from the Javascript to determine which DB table record to work with.
I've tested the ASP Classic script by invoking it directly from its host in my browser, and it works perfectly. I've also set up headers in the ASP Classic script to permit cross-domain AJAX when the calling Javascript is hosted at the operant domain.
The code fails to return any result in MSIE, Firefox, and Chrome. In MSIE, I get a runtime Javascript error saying "permission denied."
Here is the Javascript code:
-------------------------------------------
function zip_onfocusout(inzip) {
var xmlhttp;
if (window.ActiveXObject) {//MSIE
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
} else {//Other Browsers
xmlhttp = new XMLHttpRequest();
}
xmlhttp.onreadystatechange=function() {
if (xmlhttp.readyState==4 && xmlhttp.status==200) {
document.getElementById("statedisplay").innerText=xmlhttp.responseText;
}
}
xmlhttp.open("GET","http://www.leadtothetop.com/getstate.asp?zip="+inzip,true);
xmlhttp.send();
}
Here is the ASP Classic Script:
-----------------------------------------------
<%@ Language=VBScript %>
<!--#include file="system/adovbs.inc"-->
<%Response.AddHeader "Access-Control-Allow-Methods","GET, OPTIONS"
Response.AddHeader "Access-Control-Allow-Credentials","true"
Response.AddHeader "Access-Control-Allow-Origin","http://www.legalhelprightnow.org, http://legalhelprightnow.org"
Response.AddHeader "Access-Control-Allow-Headers","*"
if isnumeric(Request.QueryString("zip")) and Request.QueryString("zip")<>"" then
set CN=server.CreateObject("ADODB.Connection")
CN.Open "dsn=" & application("dbodbcdsn"),application("dbusername"),application("dbpassword")
set RS=server.CreateObject("ADODB.Recordset")
SQL="select State from zipcodes where ZipCode=" & Request.QueryString("zip") & ";"
RS.Open SQL,CN,adOpenStatic,adLockReadOnly
if not RS.EOF then
Response.Write("(" & RS("State") & ")")
else
Response.Write("(State Not Found)")
end if
RS.Close
set RS=nothing
CN.Close
set CN=nothing
elseif Request.QueryString("zip")<>"" then
Response.Write("(Zip Not Valid)")
else
Response.Write("")
end if%>
The basic idea is that someone enters a zip code into a textbox on the calling page, and after moving mouse focus to the next control, the AJAX call is intended to fill a SPAN element with the associated two byte state abbreviation within parentheses.
Are my ASP classic headers wrong, or is something else causing the problem?
My PC is running Windows XP, and the ASP Classic host is running Windows 2008.
Thanks very much,
Stu Engelman
Author: stuengelman replied at 2024-08-06 11:21:41
Hi Tagit,
Got it. You can remove the email now.
Will get back to you in a few days (very busy with work right now).
Stu
Got it. You can remove the email now.
Will get back to you in a few days (very busy with work right now).
Stu
Expert: Rob Jurd replied at 2024-08-06 00:54:22
Done :-)
Author: stuengelman replied at 2024-08-06 00:08:55
Tagit,
Please see Netminder's comment above. Can you post your email address in your profile, and then make a post here to have me look. You can remove your email after I reply back that I've got it.
Stu
Please see Netminder's comment above. Can you post your email address in your profile, and then make a post here to have me look. You can remove your email after I reply back that I've got it.
Stu
Expert: Netminder replied at 2024-08-05 23:23:17
We'd prefer he didn't; better that he post it in his profile (and it's likely to cause him less spam).
Author: stuengelman replied at 2024-08-05 22:40:44
Netminder,
An article really isn't appropriate here, as I am proposing explaining an exploit to overcome a cross-domain security feature in MS software. There is no issue as long as the same person owns both sites, but this can be used as a hacking tool if someone owns one site and not the other (data theft, web form code injection to corrupt DB's, etc.).
Is it permissible for tagit to provide his email in a post here, and then we can communicate privately?
Thanks, Stu
An article really isn't appropriate here, as I am proposing explaining an exploit to overcome a cross-domain security feature in MS software. There is no issue as long as the same person owns both sites, but this can be used as a hacking tool if someone owns one site and not the other (data theft, web form code injection to corrupt DB's, etc.).
Is it permissible for tagit to provide his email in a post here, and then we can communicate privately?
Thanks, Stu
Expert: Netminder replied at 2024-08-05 19:02:02
Stu,
Just a suggestion: write an article about the problem and the solution...
Netminder
Senior Admin
Just a suggestion: write an article about the problem and the solution...
Netminder
Senior Admin
Author: stuengelman replied at 2024-08-05 15:07:32
Hi Tagit,
I'll supply you with some sample code to illustrate the concept.
Stu
I'll supply you with some sample code to illustrate the concept.
Stu
Expert: Rob Jurd replied at 2024-08-05 05:37:59
I really appreciate your explanation on that Stu and would like to fully understand how you have achieved this. I have always got permission denied and hadn't taken it any further or just found another way to get what I needed.
I'd like to do a bit of testing myself but if I don't get anywhere I'll open a question and post the link here, as I'd like your input.
I'd like to do a bit of testing myself but if I don't get anywhere I'll open a question and post the link here, as I'd like your input.
Author: stuengelman replied at 2024-08-05 00:44:49
Hi Tagit,
Actually, you can use an IFRAME to pull in any web (browser) page from any site. And then if you want to execute a server side script on the site, you can attach a JS AJAX call to the script within the IFRAME. You simply use the document.all.iframes.xxx object, where xxx is the ID of the IFRAME. Then, attach methods and events to the document.all.iframes.xxx object to make the JS call and receive the AJAX output. Next, place JS outside the IFRAME to call the methods, and finally place code within the IFRAME to pass the AJAX output back to the code outside the IFRAME. Basically, the AJAX objects responseText object will contain all Response.Write output from the server script. No credentialing will be required in the AJAX call, and no calling URL permission headers will be required in the server script, because the IFRAME treats the remote site as local.
Using this exploit is fine (though cumbersome) if you own the site you are spidering, but is unethical and typically violates terms of use if you don't. Also, state and federal intellectual property theft laws may violated if you don't own the spidered site, particularly when the site's content is copyrighted. I've used this technique to connect information between multiple sites owned by the same client, though I would never do it without the remote site owner's written permission if my client didn't own the remote site.
Stu
Actually, you can use an IFRAME to pull in any web (browser) page from any site. And then if you want to execute a server side script on the site, you can attach a JS AJAX call to the script within the IFRAME. You simply use the document.all.iframes.xxx object, where xxx is the ID of the IFRAME. Then, attach methods and events to the document.all.iframes.xxx object to make the JS call and receive the AJAX output. Next, place JS outside the IFRAME to call the methods, and finally place code within the IFRAME to pass the AJAX output back to the code outside the IFRAME. Basically, the AJAX objects responseText object will contain all Response.Write output from the server script. No credentialing will be required in the AJAX call, and no calling URL permission headers will be required in the server script, because the IFRAME treats the remote site as local.
Using this exploit is fine (though cumbersome) if you own the site you are spidering, but is unethical and typically violates terms of use if you don't. Also, state and federal intellectual property theft laws may violated if you don't own the spidered site, particularly when the site's content is copyrighted. I've used this technique to connect information between multiple sites owned by the same client, though I would never do it without the remote site owner's written permission if my client didn't own the remote site.
Stu
Expert: Rob Jurd replied at 2024-08-04 23:58:34
No objections, though for the record, the iframe solution ONLY works when you have access to the other site. I'm aware you do in this case but it is still bad programming practice to do so. It can break other apps that use the web service.
Author: stuengelman replied at 2024-08-04 23:27:03
OK, thanks Dave, Stu
Expert: Dave Baldwin replied at 2024-08-04 22:36:40
No, don't worry about it, I have no objections. @tagit gave you the details you needed.
Author: stuengelman replied at 2024-08-04 22:30:05
Dave - You provided a correct overview of the issue, but not any specific solution (other than a reference to the code Tagit provided).
Duncan - I agree you ultimately provided most (but not all) of the solution, but the details came after the points were awarded. Your earlier posts about IFRAMES would have solved the issue; I've used this technique before, but I wanted something more straightforward to avoid the extra coding required to spider the IFRAME portion of the DOM (I would have had to programmatically attach JS to an invisible IFRAME, invoke it from the main JS, and then pipe the AJAX output from the IFRAME back to the SPAN element; it all would have worked, but it would have involved about twice the amount of JS as I was using).
If there are still any disagreements from anyone, please advise. Otherwise, Tagit will retain the points for this question.
Stu
Duncan - I agree you ultimately provided most (but not all) of the solution, but the details came after the points were awarded. Your earlier posts about IFRAMES would have solved the issue; I've used this technique before, but I wanted something more straightforward to avoid the extra coding required to spider the IFRAME portion of the DOM (I would have had to programmatically attach JS to an invisible IFRAME, invoke it from the main JS, and then pipe the AJAX output from the IFRAME back to the SPAN element; it all would have worked, but it would have involved about twice the amount of JS as I was using).
If there are still any disagreements from anyone, please advise. Otherwise, Tagit will retain the points for this question.
Stu
Expert: Netminder replied at 2024-08-04 17:07:54
Off-topic comments deleted.
The request attention button exists to avoid off-topic arguments that do not contribute to the solution of a problem.
Netminder
Senior Admin
The request attention button exists to avoid off-topic arguments that do not contribute to the solution of a problem.
Netminder
Senior Admin
Expert: duncanb7 replied at 2024-08-04 16:57:44
Anyway, I have no comment here
thanks for all of you
Duncan
thanks for all of you
Duncan
Expert: Rob Jurd replied at 2024-08-04 16:27:44
Thanks for the points Stu
Expert: Rob Jurd replied at 2024-08-04 16:19:28
Easy to say when you've had the experience of a problem like this one because you know what to look for. When you haven't, you're looking for guidance.
Expert: Rob Jurd replied at 2024-08-04 16:14:14
Duncan that's not what EE is about. We as experts are here to guide and help the authors through to a solution. Posting a link just doesn't cut it in my opinion, not without an explanation at least.
I certainly felt Stu understands the code and solution.
I certainly felt Stu understands the code and solution.
Expert: Rob Jurd replied at 2024-08-04 16:12:27
Hi stu,
You have accepted the solution based on what is a solution and not just links to another page where you have to workout what is being suggested.
In your position I may have allocated Dave points as he was on the right track and as he said was on his way to posting code.
You have accepted the solution based on what is a solution and not just links to another page where you have to workout what is being suggested.
In your position I may have allocated Dave points as he was on the right track and as he said was on his way to posting code.
Expert: Rob Jurd replied at 2024-08-04 16:04:02
Duncan, what do you mean? You need to explain further what you're stating. We all agree except for you that the solution here is the solution. It works as the author wants so what's the issue?
Author: stuengelman replied at 2024-08-04 15:52:08
Hello All,
I meant no offense to anyone in picking Tagit's solution. This was the only solution that provided both the fixes to the calling JS code and the server code, without having to create hidden IFRAME's to defeat browser restrictions on cross-domain AJAX. I admit the IFRAME strategy would work, but it would have required extra JS to internally "spider" the DB host (not that complex, but more time consuming). Tagit's solution was the most straightforward and it worked perfectly without any modification.
I'm very sorry if anyone feels cheated. Please feel free to respond again if you feel I have not been fair.
Best, Stu
I meant no offense to anyone in picking Tagit's solution. This was the only solution that provided both the fixes to the calling JS code and the server code, without having to create hidden IFRAME's to defeat browser restrictions on cross-domain AJAX. I admit the IFRAME strategy would work, but it would have required extra JS to internally "spider" the DB host (not that complex, but more time consuming). Tagit's solution was the most straightforward and it worked perfectly without any modification.
I'm very sorry if anyone feels cheated. Please feel free to respond again if you feel I have not been fair.
Best, Stu
Expert: Rob Jurd replied at 2024-08-04 15:17:57
Sorry duncanb7, if anyone deserves points here it would be Dave's suggestion. There's nothing here you've posted that it's relevant to a solution.
I'm all for not stealing other ideas but clearly this is more than just about a concept. It's more than copying code too, it's how that code goes together which I didn't see here and felt it was necessary to the solution
I'm all for not stealing other ideas but clearly this is more than just about a concept. It's more than copying code too, it's how that code goes together which I didn't see here and felt it was necessary to the solution
Expert: duncanb7 replied at 2024-08-04 14:40:05
it is the requestState.asp page we called helper page.
Please review the score again, otherwise, who came later who get first and
copy others' idea to get the answer
if you need to report us the result later so meaning that is not perfect solution,
just a solution for the basis concept for cross-domain ajax, what is special if
know it the concept of cross-domain ajax
if someone can not write the code because he doesn't know the concept or
even get the code but still not understand the concept, if underdtand the concept
why he can not write the code, so the answer is the solution came from the concept
first
I also get the code without 'set xmlhttp = nothing
that simple code you can find it on any website
and please try it and I never test it
Since I came later, could I get some score that you can find it w3cschools
or everywhere ? if just need the code, why not just go
google copy some before this thread ?
Please review the score again, otherwise, who came later who get first and
copy others' idea to get the answer
if you need to report us the result later so meaning that is not perfect solution,
just a solution for the basis concept for cross-domain ajax, what is special if
know it the concept of cross-domain ajax
if someone can not write the code because he doesn't know the concept or
even get the code but still not understand the concept, if underdtand the concept
why he can not write the code, so the answer is the solution came from the concept
first
I also get the code without 'set xmlhttp = nothing
that simple code you can find it on any website
and please try it and I never test it
Since I came later, could I get some score that you can find it w3cschools
or everywhere ? if just need the code, why not just go
google copy some before this thread ?
<%'get the zipcode parameter from URLzipcode=ucase(request.querystring("zip"))url = "http://www.leadtothetop.com/getstate.asp?zip=" & zipcodeset xmlhttp = CreateDDDDDDDDDDDDDDDDObject("MSXML2.ServerXMLHTTP")xmlhttp.open "GET", url, falsexmlhttp.send ""Response.write xmlhttpDDDDDDDDDDDD.responseText'set xmlhttp = nothing%>
1:2:3:4:5:6:7:8:9:10:
later coming to see this thread users, please study concept first of ajax before get the so- called solution code becoz the code might be not correct
ANd I think the code is not solution since it is not tested and failed
Author: stuengelman replied at 2024-08-04 11:36:32
Excellent solution. Very easy to follow, and worked perfectly.
Author: stuengelman replied at 2024-08-04 11:35:38
Tagit,
Your solution worked perfectly. Thanks so much for your help.
Stu
Your solution worked perfectly. Thanks so much for your help.
Stu
Author: stuengelman replied at 2024-08-04 11:09:40
Hello Everyone,
Thanks so much for all the comments. I will test out your advice and report back.
Stu Engelman
Thanks so much for all the comments. I will test out your advice and report back.
Stu Engelman
Expert: Dave Baldwin replied at 2024-08-04 10:28:05
@tagit's code is an example of what I was talking about.
Expert: Rob Jurd replied at 2024-08-04 05:10:20
See here for an example using an embedded iframe, though you can't get the value, you can see it but i don't think it's what you want: http://jsfiddle.net/rjurd/FcNmC/
Accepted Solution
Expert: Rob Jurd replied at 2024-08-04 05:09:15
500 points EXCELLENT
I fail to see how the links posted above will help in this case... what am I missing? They're talking about resizing iframes... not really relevant here. However the helper page is relevant.
What is meant by a helper page is a "middleman" between your client page and the zip code page. It is a simple asp page that receives your ajax request and then requests the information from that zip code url as if you were using a browser accessing it directly. As you did with your browser and saw that it gave you what you were after. This helper page then passes the result back to your ajax. The ASP page running on the server has the authority to access other domains. The client doesn't so that is why this extra page is necessary.
so something like this (untested):
requestState.asp
What is meant by a helper page is a "middleman" between your client page and the zip code page. It is a simple asp page that receives your ajax request and then requests the information from that zip code url as if you were using a browser accessing it directly. As you did with your browser and saw that it gave you what you were after. This helper page then passes the result back to your ajax. The ASP page running on the server has the authority to access other domains. The client doesn't so that is why this extra page is necessary.
so something like this (untested):
requestState.asp
<%'get the zipcode parameter from URLzipcode=ucase(request.querystring("zip"))url = "http://www.leadtothetop.com/getstate.asp?zip=" & zipcodeset xmlhttp = CreateObject("MSXML2.ServerXMLHTTP")xmlhttp.open "GET", url, falsexmlhttp.send ""Response.write xmlhttp.responseTextset xmlhttp = nothing%>
1:2:3:4:5:6:7:8:9:10:
then in your javascript:
Expert: duncanb7 replied at 2024-08-04 01:16:56
That is why I said helper page , please study the link first, and you will understand
how it work for cross-domain and then apply back the idea into your real cases
how it work for cross-domain and then apply back the idea into your real cases
Expert: Dave Baldwin replied at 2024-08-04 01:12:54
Cross-site scripting is blocked as a security restriction in all modern browsers because it has been used in the past for bad purposes. What you can do instead is use AJAX to contact a page on your server that fetches the info from the other server and returns it to your page. It's a two-step process but the browsers will not allow you to directly access the other domain directly in javascript.
Expert: duncanb7 replied at 2024-08-04 00:56:33
I think you need additional helper page to do cross-domain Ajax, just study this first, simple
example from this link
http://paulasmuth.com/blog/dynamic_height_crossdomain_iframe/
http://johan.driessen.se/posts/resizing-cross-domain-iframes
example from this link
http://paulasmuth.com/blog/dynamic_height_crossdomain_iframe/
http://johan.driessen.se/posts/resizing-cross-domain-iframes
Expert: duncanb7 replied at 2024-08-04 00:56:00
I think you need additional helper page to do cross-domain Ajax, just study this first
http://paulasmuth.com/blog/dynamic_height_crossdomain_iframe/
http://johan.driessen.se/posts/resizing-cross-domain-iframes
http://paulasmuth.com/blog/dynamic_height_crossdomain_iframe/
http://johan.driessen.se/posts/resizing-cross-domain-iframes