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POCanvas has been tainted by cross-origin data via local chrome:// extension URL
 

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  1. POCanvas has been tainted by cross-origin data via local chrome:// extension URL
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    <p>I am working on a google chrome extension and I am trying to load an image that is bundled with the extension into a canvas. </p> <pre><code>var canvas = document.createElement('canvas'); canvas.width = 470; canvas.height = 470; var context = canvas.getContext('2d'); var image = new Image(); image.addEventListener('load', function(){ //process }); image.src = chrome.extension.getURL("asset/gotcha.png"); </code></pre> <p>When I execute the code in a content script I am getting:</p> <pre><code>Unable to get image data from canvas because the canvas has been tainted by cross-origin data. </code></pre> <p>Is there a way to avoid this? I have successfully embedded images, audio, video and flash directly into target sites without any those issues. The resource is listed under the web_accessible_resources in the manifest file.</p>
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    1. COWhat is the definition of `get_url` ?
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    2. COget_url is local utility method that give me a chrome url ala chrome://1238901283908123098190/asset/gotcha.png
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    3. COWhy don't you use **[chrome.extension.getURL()](http://developer.chrome.com/extensions/extension.html#method-getURL)** ? Where is the above code run from ?
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