How to change style of iframe content cross-domain?

Question

I want to make background color black and text color white for the content inside iframe from its default of normal white background and black text. The iframe src attribute

Answer 1

This one's been here a while, but hopefully this will help someone....

The closest I can see is using a filter on the iframe

Xray: makes it black and white then inverts it.

 <iframe style="filter:xray" src=".....

Invert: inverts all the colors rather than just swapping black & white.

 <iframe style="filter:invert" src=".....

Both only work in IE. I thought these only worked on images till a few minutes ago...

eg. http://www.ssi-developer.net/css/visual-filters.shtml

Answer 2

The only possibility would be to load the iframe content through a proxy of yours and modify the HTML content. You can not access iframes from another domain via JavaScript.

Answer 3

It isn't possible. The whole point of the Same Origin Policy is that you can't access or manipulate content from another domain.