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POGetting 'Proxy authentication required' when doing XMLHttpRequest (cross-origin) on Chrome Extension background page script
 

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  1. POGetting 'Proxy authentication required' when doing XMLHttpRequest (cross-origin) on Chrome Extension background page script
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    <p><strong>Question</strong></p> <p>I am getting a <code>Error 407 'Proxy authentication required</code>' when doing a cross-origin XMLHttpRequest from the background page of my Google Chrome extension.</p> <p>I have Chrome set to use a HTTP Proxy which requires a username and password (Basic Auth).</p> <p>The code below works if I do not have a proxy set in Chrome (as expected).</p> <p>When I first open Chrome it asks for my proxy credentials, which I enter, and it remembers for the rest of the session.</p> <p>I am assuming that the extension is in its own process and therefore does not have the credentials to the proxy stored.</p> <p>My question is, is there any way around this? Is there a way to make the XMLHttpRequest work in the extension's background page script no matter what the proxy settings are set to in Chrome browser?</p> <p>I am launching chrome with <code>chrome.exe --proxy-server=my.proxy.server:3128</code> on Windows if that is relevant.</p> <p><strong>Example Code</strong></p> <p>manifest.json</p> <pre><code>{ [...] "background_page": "background.html", "permissions": [ "http://example.org/", "http://mysite.com/" ], "content_scripts": [ { "matches": [ "http://example.org/*" ], "js": ["contentscript.js"] } ] } </code></pre> <p>background.html->background.js:</p> <pre><code>function getById(request, sender, sendResponse) { var xhr = new XMLHttpRequest(); xhr.onreadystatechange = function(data) { if (xhr.readyState == 4) { if (xhr.status == 200) { sendResponse(JSON.parse(xhr.responseText)); } else { // xhr.status == 407 here sendResponse(null); } } } var url = 'http://mysite.com/script.php?id=' + request.id; xhr.open('GET', url, true); xhr.send(); } chrome.extension.onRequest.addListener(function(request, sender, sendResponse) { if ( request.action == 'getById' ) { getById(request, sender, sendResponse); } else { sendResponse(null); } }); </code></pre> <p>contentscript.js:</p> <pre><code>chrome.extension.sendRequest({ 'action': 'getById', 'id': 42 }, function(response) { alert(response) }); </code></pre>
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      1. POGetting 'Proxy authentication required' when doing XMLHttpRequest (cross-origin) on Chrome Extension background page script
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    2. VO
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    1. COTry `["http://*/*", "https://*/*"]` domain permission.
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    2. COThank you for the suggestion but that does not work unfortunately.
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      1. POGetting 'Proxy authentication required' when doing XMLHttpRequest (cross-origin) on Chrome Extension background page script
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    3. COare you behind a SOCKS5 proxy? Have you configured your Windows' network settings with that proxy also?
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      1. POGetting 'Proxy authentication required' when doing XMLHttpRequest (cross-origin) on Chrome Extension background page script
      1. USapose
 

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