I just tried publishing my prototype on Playcanvas to test, and I’m getting a CORS error when trying to manipulate some data on a separate canvas (I use it to build an opacity map for my 2D ray-casting), it says the canvas has been tainted by cross-origin data.
The assets are stored inside PlayCanvas, and I used Asset.getFileUrl() to get the correct URL which I then load to an in-memory image tag, and thus to a canvas.
Looking at the headers, the data coming back from Amazon S3 doesn’t have any CORS headers, although I’m confused because I swear this was working last night… but since I don’t have control over the S3 bucket, do I need to do things a different way, or is it possible to add CORS headers there?
