# Mongrel Patch - Fixes 404 Error in IE **URL:** \ **Category:** Ruby\ **Created:** [July 26, 2006, 9:27am UTC](https://www.ruby-forum.com/t/mongrel-patch-fixes-404-error-in-ie/99937 "2006-07-26T09:27:51Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![bct](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/6a8cbe/32.png) [@bct](https://www.ruby-forum.com/u/bct)\ **Post date:** [July 26, 2006, 9:27am UTC](https://www.ruby-forum.com/t/mongrel-patch-fixes-404-error-in-ie/99937/1 "2006-07-26T09:27:51Z")
Hello, Using Mongrel has been great. Thank you Zed for developing such a fine piece of software. For some reason, when using IE to access a Rails app running on a Mongrel server, I get a 404 error. This is an intermittent error and does not happen on all machines. Upon further investigation, we noticed that IE sends a GET [http://localhost:3000/path/to/file](http://localhost:3000/path/to/file) instead of GET /path/to/file This causes Mongrel to send back a 404, without sending the request to Rails. It seems the GET [http://localhost:3000/path/to/file](http://localhost:3000/path/to/file) does not map to the proper handler. We looked in the RFC (section 5.2), [HTTP/1.1: Request](http://www.w3.org/Protocols/rfc2616/rfc2616-sec5.html), and it seems to indicate that the web server should ignore the host part of an absolute uri in the GET request. Am I correct on this? I created a bug report at [http://rubyforge.org/tracker/index.php?func=detail&aid=5053&group\_id=1306&atid=5145](http://rubyforge.org/tracker/index.php?func=detail&aid=5053&group_id=1306&atid=5145) and a patch to fix it at [http://rubyforge.org/tracker/index.php?func=detail&aid=5190&group\_id=1306&atid=5147](http://rubyforge.org/tracker/index.php?func=detail&aid=5190&group_id=1306&atid=5147) Has this been an issue for anybody else? Zed or anybody on the Mongrel core team, if you see this, please take a look at the patch. [http://rubyforge.org/tracker/index.php?func=detail&aid=5190&group\_id=1306&atid=5147](http://rubyforge.org/tracker/index.php?func=detail&aid=5190&group_id=1306&atid=5147) Thanks, Brian T. ---
**Author:** ![bct](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/6a8cbe/32.png) [@bct](https://www.ruby-forum.com/u/bct)\ **Post date:** [July 26, 2006, 5:07pm UTC](https://www.ruby-forum.com/t/mongrel-patch-fixes-404-error-in-ie/99937/2 "2006-07-26T17:07:58Z")
On Wed, 2006-07-26 at 16:25 +0900, Brian T. wrote: > Zed or anybody on the Mongrel core team, if you see this, please take a look > at the patch. > [http://rubyforge.org/tracker/index.php?func=detail&aid=5190&group\_id=1306&atid=5147](http://rubyforge.org/tracker/index.php?func=detail&aid=5190&group_id=1306&atid=5147) Brian, I’ve been watching your patch and bug reports but haven’t had time to deal with them just yet. Next week I’ll be attacking the bug list and doing a release. BTW, your patch has a potential buffer overflow in two directions. There’s a simpler fix I’ll do in the parser, but use your patch to get you over the hump until I make it. Basically, strstr and then searching for a “/” without any sizes will cause nasty things. Also, Mongrel doesn’t really recognize URLs like this since it’s not doing vhosts or anything, so the real question is why IE is sending this crap. I’ll add the patch since frankly you can’t fight IE, but there’s _got_ to be a reason IE is sending this. I use IE in testing all the time and never had this happen. Maybe it’s that stupid localhost:3000 vs. [http://localhost:3000](http://localhost:3000) thing (try typing both into IE and see if one works but the other doesn’t)? Zed ---
**Author:** ![bct](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/6a8cbe/32.png) [@bct](https://www.ruby-forum.com/u/bct)\ **Post date:** [July 27, 2006, 4:07am UTC](https://www.ruby-forum.com/t/mongrel-patch-fixes-404-error-in-ie/99937/3 "2006-07-27T04:07:54Z")
Thank you Zed!!