New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Documentation update: IE now requires MIME type 'message/rfc822' for MHTML content #34

Open
neogic opened this Issue Sep 1, 2011 · 0 comments

Comments

Projects
None yet
1 participant
@neogic

neogic commented Sep 1, 2011

As of the Jun 11 (earlier?) MHTML security update KB2544893 (also called KB2503658 AIUI), the MHTML content MUST be delivered with the MIME type "message/rfc822", otherwise it will be ignored (including in IE6/7 on XP). Prior to IE9, this MIME type doesn't prevent IE from parsing the stylesheet as CSS, so is fine to use for IE8 and under (but not IE9+ and other browsers).

More discussion here:
http://www.phpied.com/mhtml-when-you-need-data-uris-in-ie7-and-under/#comment-74091
http://www.phpied.com/mhtml-when-you-need-data-uris-in-ie7-and-under/#comment-78585

Cheers, BJ

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment