Created
March 28, 2017 04:02
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Detect Chrome extensions using blocked requests
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| <script> | |
| var extensions = { | |
| 'fngmhnnpilhplaeedifhccceomclgfbg': 'EditThisCookie', | |
| 'aohghmighlieiainnegkcijnfilokake': 'Google Docs', | |
| 'kajibbejlbohfaggdiogboambcijhkke': 'Mailvelope', | |
| 'badTestID': 'fakePlugin' | |
| }; | |
| var detectedPlugins = []; | |
| for (var extensionID in extensions) { | |
| var testImage = new Image(); | |
| testImage.onerror = function() { | |
| // if plugin is installed, chrome will block the request and change the src | |
| if (this.currentSrc == "chrome-extension://invalid/") { | |
| // extract the extension ID from the original source | |
| var extID = this.src.match(/^chrome-extension?\:\/\/([^\/?#]+)(?:[\/?#]|$)/i)[1]; | |
| detectedPlugins.push(extensions[extID]); | |
| } | |
| }; | |
| testImage.src = "chrome-extension://" + extensionID + "/manifest.json"; | |
| } | |
| window.onload = function() { | |
| console.log(detectedPlugins); | |
| } | |
| </script> |
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