Is there any way to disable the Same-origin policy on Google's Chrome browser?
Close chrome (or chromium) and restart with the --disable-web-security
argument. I just tested this and verified that I can access the contents of an iframe with src="http://google.com" embedded in a page served from "localhost" (tested under chromium 5 / ubuntu). For me the exact command was:
Note : Kill all chrome instances before running command
chromium-browser --disable-web-security --user-data-dir="[some directory here]"
The browser will warn you that "you are using an unsupported command line" when it first opens, which you can ignore.
From the chromium source:
// Don't enforce the same-origin policy. (Used by people testing their sites.)
const wchar_t kDisableWebSecurity[] = L"disable-web-security";
Before Chrome 48, you could just use:
chromium-browser --disable-web-security