I have a problem with CSRF validation failing on iframes in IE.
I've learned I can fix it if I have access to the parent page's server by adding certain headers, using information from this question. Unfortunately, I don't have access to the parent page (third party host platform), so this won't work.
The page in question is: http://yuchan.myshopify.com/collections/iphone-4-artist-series/products/custom-product
To replicate the problem, click on "Upload your art" (step 2) and try to upload something in IE. You should get a CSRF error.
I am going to disable CSRF protection, but I was curious what others thought of my situation.
Thanks!