canvas getImageData doesn't work when running locally on Windows? (security exception)

Question

I'm writing a local HTML5 app to process some scientific images. I'm on OS X, and I'm specifically writing it in JavaScript/HTML5 for portability so that I can demonstrate it to my supervisor on a Windows machine. This app will never be deployed on a server.

The problem is, it works perfectly on Safari on OS X, but on Windows it throws up a security error both in Firefox and Chrome. I think this is because it thinks the image is on a different domain, but in reality it's in the same folder as the script.

Is there any way I can get around this?

The error in question is the same as detailed here:

Uncaught Error: SECURITY_ERR: DOM Exception 18 when I try to set a cookie

Edit: I should clarify, the answer on the question I linked (running it on a local server) isn't feasible because I can't go and install any software (or servers!) on these machines. The reason I'm hoping for an alternative answer is because it does work on OS X.

Answer 1

To get around cross-origin issies in Chrome you can run Chrome with this flag:

--allow-file-access-from-files