Ever since I added in an HTTP profile my favicon.ico in Internet Explorer will not display. It shows garbage text. But in Firefox it shows just fine. Any idea of what to turn on inside of the HTTP profile to get the favicon.ico to display correctly in IE? Thanks.

It shows garbage text. do you use http analyzer tool (e.g. httpfox, fiddler)? you have seen IE sending request to /favicon.icon, haven't you? HttpFox https://addons.mozilla.org/en-us/firefox/addon/httpfox/ Fiddler http://fiddler2.com/ if yes, can you check whether the content-type value is same on IE and FF?

OK, I downloaded Fiddler2, it shows my ICON as Content-Type: text/plain when it should show it as Content-Type: image/x-icon What do I need to change in the HTTP profile so that it recognizes it as image/x-icon ? Server: Apache/1.3.27 (Unix) Last-Modified: Tue, 14 May 2013 03:45:25 GMT Accept-Ranges: bytes Content-Length: 3262 Content-Type: text/plain Expires: Mon, 02 Sep 2013 13:20:19 GMT Cache-Control: max-age=0, no-cache, no-store Pragma: no-cache Date: Mon, 02 Sep 2013 13:20:19 GMT Connection: keep-alive

What do I need to change in the HTTP profile so that it recognizes it as image/x-icon ? i do not think bigip changes the content-type header value. anyway, can you try something like this? e.g. [root@ve11a:Active:Not All Devices Synced] config tmsh list ltm rule myrule ltm rule myrule { when HTTP_REQUEST { if { [HTTP::uri] equals "/favicon.ico" } { set favicon 1 } else { set favicon 0 } } when HTTP_RESPONSE { if { $favicon and [HTTP::status] == 200 } { HTTP::header replace "Content-Type" "image/x-icon" } } }

Should I do something with Compression? It is set to Disabled I only see in the include list: text/ application/(xml|x-javascript) Should I enable it and put in image/x-icon ?

Just to level set, what happens when you completely disable compression?

favicon.ico | DevCentral

ChadBigIP_14663
Nimbostratus
Sep 02, 2013
Has anyone seen this before, that Internet Explorer will not load the favicon.ico but other browser load it just fine?
ChadBigIP_14663
Nimbostratus
Sep 02, 2013
Should Response Chunking be set to Selective?
ChadBigIP_14663
Nimbostratus
Sep 02, 2013
What about Compression?

Should I turn it on?

Should I include anything in the Include List for Content Type??

All other browsers are fine, except for IE.

IE will not display favicon.ico
ChadBigIP_14663
Nimbostratus
Sep 02, 2013
Should I turn on Compression, gzip and make sure these are all in the list below?

Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9, text/plain;q=0.8,video/x-mng,image/png,image/jpeg,image/gif;q=0.2,/;q=0.1
ChadBigIP_14663
Nimbostratus
Sep 02, 2013
I setup a custom HTTP profile

in the drop down it says: Parent Profile: http

Does that mean it still uses the Variables from http - even though I setup a brand new custom HTTP profile for my VIP?
nitass
Employee
Sep 02, 2013
Does that mean it still uses the Variables from http

yes. it is how profile works.

No difference.

it does not make sense to me. how come they are not different in fiddler but favicon.ico is not shown in IE?
ChadBigIP_14663
Nimbostratus
Sep 02, 2013
not sure...

If I remove your iRule, it goes back to text/plain

If I put your iRule in, it changes it to image/ico

But yet, the favicon.ico will not display in the address bar for IE

I think something is missing or not turned on in the http profile

Any idea what variables would allow this to work because I see for other domains that content encoding is gzip, and my profiles are Disabled for Compression. should I turn compression on?
nitass
Employee
Sep 02, 2013
i understand you are saying without irule, fiddler log when using IE and FF are same but only IE favicon.ico is shown, aren't you?

if yes, i believe it should have something different. if i were you, i would find what it is. i think it is better than trial and error changing http profile setting.

just my 2 cents.
boneyard
MVP
Sep 02, 2013
what happens without a custom http profile? does it then work, it might be the backend server that just acts odd?
Kevin_Stewart
Employee
Sep 03, 2013
As boneyard suggests, what happens if you

Completely remove the HTTP profile (and HTTP iRules)?

Use a default (unmodified) HTTP profile?

After a little searching online, this seems like a fairly common problem with IE. Have you done any of the prescribed fixes?

Verified that the icon is in the right format
Put the icon in the root of the directory
Cleared IE's cache and history
Added the site as a favorite