# WEBrick and swf files **URL:** \ **Category:** Ruby\ **Created:** [December 21, 2006, 5:46pm UTC](https://www.ruby-forum.com/t/webrick-and-swf-files/80139 "2006-12-21T17:46:50Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![ericrchr](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/e/8baadc/32.png) [@ericrchr](https://www.ruby-forum.com/u/ericrchr)\ **Post date:** [December 21, 2006, 5:46pm UTC](https://www.ruby-forum.com/t/webrick-and-swf-files/80139/1 "2006-12-21T17:46:50Z")
Hi, I am having trouble getting Mozilla firefox to load a swf file served from WEBrick. When I access the same file from another web server in firefox, it works fine (apache, abyss, etc) When I access the file from Internet Explorer 6 (served from WEBrick), the swf file loads fine. When I try from firefox, I am asked if I want to download the file. Here is what WEBrick logs when it serves the file: localhost - - [21/Dec/2006:10:11:22 CST] “GET /hello.lzx.swf HTTP/1.1” 304 0 I checked in firefox options and it has swf files listed to be opened with shockwave flash. I also added “swf” =\> “application/x-shockwave-flash” as a mime type in webrick (added to httputils.rb) I am a bit green at these finer points of HTTP so if anyone has a suggestion or possible solution, I’d greatly appreciate it, as I’d hate to have to use Internet explorer for this particular app. I’d also like to use WEBrick to serve the application. Thanks in advance, Eric ---
**Author:** ![ericrchr](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/e/8baadc/32.png) [@ericrchr](https://www.ruby-forum.com/u/ericrchr)\ **Post date:** [December 21, 2006, 6:57pm UTC](https://www.ruby-forum.com/t/webrick-and-swf-files/80139/2 "2006-12-21T18:57:03Z")
\<…\> > When I access the file from Internet Explorer 6 (served from WEBrick), > the swf file loads fine. When I try from firefox, I am asked if I want > to download the file. > > Here is what WEBrick logs when it serves the file: > > localhost - - [21/Dec/2006:10:11:22 CST] “GET /hello.lzx.swf HTTP/1.1” > 304 0 Status code 304 “Not modified” means that server has the same version of the file as browser in it’s cache. So in this case file won’t be served and browser will use cached version. > I checked in firefox options and it has swf files listed to be opened > with shockwave flash. I also added “swf” =\> > “application/x-shockwave-flash” as a mime type in webrick (added to > httputils.rb) It would help to see full set of headers (you can use LiveHTTPHeaders or Firebug extesnions for that), but I have a wild idea: can you try to rename your swf from hello.lzx.swf to, say hello-lzx.swf maybe something along the path thinks that .lzx is extension of the file, not .swf… Regards, Rimantas ---
**Author:** ![ericrchr](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/e/8baadc/32.png) [@ericrchr](https://www.ruby-forum.com/u/ericrchr)\ **Post date:** [December 21, 2006, 7:41pm UTC](https://www.ruby-forum.com/t/webrick-and-swf-files/80139/3 "2006-12-21T19:41:08Z")
> It would help to see full set of headers (you can use LiveHTTPHeaders > or Firebug extesnions for that), but I have a wild idea: can you try > to rename your swf from > hello.lzx.swf to, say hello-lzx.swf maybe something along the path thinks that > lzx is extension of the file, not .swf… Renaming the file worked. I also cleared the browser’s cache and the original file name works as well. Thanks for the response.