[OpenLayers-Dev] Firefox and canvas, strange behavior

[Andreas Hocevar]

Hi,

I found a solution: in Firefox, it is not enough to set

img.crossOrigin = null;

What you need to do is

img.removeAttribute("crossorigin");

Also note a typo in Tile/Image.js:

                if (url.substr(0, 5 !== 'data:')) {

should read

                if (url.substr(0, 5) !== 'data:') {

Andreas.

On Fri, Feb 17, 2012 at 10:26 AM, Frederic Junod
<frederic.junod at camptocamp.com> wrote:
> Hello all,
>
> I'm trying to create a demo to shows the new canvas capabilities in
> OpenLayers [1].
> The attached example loads a basic OSM layer and turns the tiles into
> grayscale. This works great with Chrome 16 and 18; even IE9 displays
> the layer correctly [2].
>
> But I can't make it work with FireFox 10: the tiles are still in color
> (and in the wrong position). Using firebug, I see that the img src are
> correct (data url in base64).
>
> Repaint bug? src size limitation?
>
> Any advice welcome
>
> fredj
>
> [1] https://github.com/openlayers/openlayers/commit/ad201f3a80827f8189d9d798fb8c93fe67fd8865
> [2] With IE9, a local proxy must be created, this comments inside the
> attached file.
>
> --
> Frédéric Junod
> Camptocamp SA
>
> _______________________________________________
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>



-- 
Andreas Hocevar
OpenGeo - http://opengeo.org/
Expert service straight from the developers.