IE9 Standards Mode Accepts only text/css for stylesheets

re: IE9 Standards Mode Accepts only text/css for stylesheets

Pebe — Mon, 18 Apr 2011 23:44:06 GMT

IMHO, the other browsers should follow IE on this one.

re: IE9 Standards Mode Accepts only text/css for stylesheets

JamesJara — Mon, 04 Apr 2011 21:09:04 GMT

@ Johnny

maybe this link can help you, should not necessarily be with htaccess

www.askapache.com/.../using-http-headers-with-htaccess.html

re: IE9 Standards Mode Accepts only text/css for stylesheets

EricLaw [MSFT] — Wed, 30 Mar 2011 21:43:27 GMT

@Johnny: I don't have an Apache server and I have no idea how you go about configuring one. I suspect your favorite search engine might know. As noted by Dominic just above you, apparently the "MultiViews" feature has this bug. The article he links to appears to have a solution for Apache 2.

re: IE9 Standards Mode Accepts only text/css for stylesheets

Johnny Cadelco — Wed, 30 Mar 2011 21:38:15 GMT

Eric,

Can you actually post the solution rather than stating the problem. What are specific steps in apache config so I can fix this issue? Step by step please.

Johnny

re: IE9 Standards Mode Accepts only text/css for stylesheets

Dominic White — Mon, 28 Mar 2011 08:05:19 GMT

Thanks for the headsup. It seems it is a long-standing bug[1] between Apache, mod_negotiate, PHP & IE9's change in behaviour. I've disabled MultiViews as I don't really need them and got the following on testing, which looks good:

GET singe.za.net/.../serendipity.css HTTP/1.1

Request Headers:

Host[singe.za.net]

User-Agent[Mozilla/5.0 (Windows; U; MSIE 9.0; Windows NT 9.0; en-US)]

Accept[text/css]

Accept-Language[en-us,en;q=0.5]

Accept-Encoding[gzip, deflate]

Accept-Charset[ISO-8859-1,utf-8;q=0.7,*;q=0.7]

Keep-Alive[115]

DNT[1]

Connection[keep-alive]

Response Headers:

Date[Mon, 28 Mar 2011 07:55:56 GMT]

Server[Apache]

Status[200 OK]

Set-Cookie[REDACTED; path=/

Expires[Mon, 28 Mar 2011 08:55:56 GMT]

X-Session-Reinit[true]

Vary[Accept-Encoding]

Content-Encoding[gzip]

Content-Length[2542]

Keep-Alive[timeout=15, max=100]

Connection[Keep-Alive]

Content-Type[text/css; charset=UTF-8]

[1] www.gerd-riesselmann.net/.../beware-of-apaches-multiviews

re: IE9 Standards Mode Accepts only text/css for stylesheets

Adam Barth — Sun, 27 Mar 2011 22:05:17 GMT

You're brave for changing the Accept header. AFAICT, the Accept header is even more fiddly than the User-Agent header.

re: IE9 Standards Mode Accepts only text/css for stylesheets

EricLaw [ex-MSFT] — Sun, 27 Mar 2011 17:36:01 GMT

@Paul: That's actually a rather different problem. They're serving their JavaScript as text/plain AND they're sending X-Content-Type-Options: nosniff, informing the client that this is the definitive MIME-type and the response type should not be sniffed to anything else. That's covered here: blogs.msdn.com/.../mime-handling-changes-in-internet-explorer.aspx and here: blogs.msdn.com/.../ie9-beta-google-image-search-javascript-content-type-and-nosniff.aspx

re: IE9 Standards Mode Accepts only text/css for stylesheets

Paul Irish — Sun, 27 Mar 2011 17:20:28 GMT

Similar situation for javascript, it appears.

There are a few folks out there that hotlink javascript from the github repo.. Those are served with text/plain and IE9 doesn't evaluate them.

modernizr.github.com/.../output.html is an example.