[whatwg] Canvas and Image problems

Schalk Neethling schalk at ossreleasefeed.com
Sun May 23 03:16:00 PDT 2010

Hi everyone,


Having a really weird problem that I would like some input on. I am trying
to draw an image, as well as video, onto canvas. I use the simple code


$(document).ready(function() {

      var image = $("#cat").get(0);


      var cv = $("#img_container").get(0);      

      var ctx = cv.getContext('2d');


      ctx.drawImage(image, 0, 0);



When I load up the HTML page in Chrome absolutely nothing happens and I see
no errors in the JavaScript console. When running it in Firefox 3.6.3 I get
the following error:


uncaught exception: [Exception... "Component returned failure code:
[nsIDOMCanvasRenderingContext2D.drawImage]" nsresult: "0x80040111
(NS_ERROR_NOT_AVAILABLE)" location: "JS frame ::
<file:///C:\thelab\HTML5Canvas\scripts\canvas_img.js>  :: anonymous :: line
9" data: no]


For The life of me I cannot see what I am doing wrong with the above. I have
done console logs to ensure that the code get's the image as well as the
canvas on the relevant lines and it definitely does. Anything I am


Thank you all in advance,



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