bzbarsky at mozilla.com
Fri Aug 2 17:22:30 PDT 2013
On 8/2/13 6:16 PM, David Bruant wrote:
> IIRC the only valid reason to set document.domain is pre-postMessage
> cross-eTLD+1-frame communication.
> How big is the intersection of websites both needing to support IE6/7
> and cross-eTLD+1-frame communcation?
IE8 and IE9 don't support postMessage to a cross-origin window that's
not in one of your subframes. And it's not clear what the state of
things is in IE10, exactly. See http://caniuse.com/#search=postMessage
But more importantly, having written your code before postMessage
existed is a valid reason to not use postMessage, and that doesn't mean
we should necessarily break that code.
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