What browser, and do you have the code somewhere ? That makes assisting a lot easier.
Taking a wild guess based on your comments so far, if you are importing an <img> into a canvas, you might require the 'crossorigin' attribute to be set on that element. https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image DJ On Wed, Jan 7, 2015 at 10:21 AM, Alex Brollo <[email protected]> wrote: > While dragging a little bit into canvas, I successfully upload into a > canvas a cropped clip of the image of a djvu page into it.source, just to > crash into a DOM exception "The canvas has been tainted by cross-origin > data" while attempting do access to pixel data with both getImageData() > and toDataURL() methods. > > Again, it seems a CORS issue. > > Am I wrong? Is there some doc about this issue? > > Alex brollo > _______________________________________________ > Wikitech-l mailing list > [email protected] > https://lists.wikimedia.org/mailman/listinfo/wikitech-l _______________________________________________ Wikitech-l mailing list [email protected] https://lists.wikimedia.org/mailman/listinfo/wikitech-l
