Igor Sysoev wrote: > On Sat, 16 Feb 2002, Zvi Har'El wrote: > > >>On Fri, 15 Feb 2002 09:44:19 -0800, Ian Holsman wrote about "Re: [PATCH] >mod_deflate": >> >>> >>>I'm still not very happy about compressing EVERYTHING and excluding >>>certain browsers >>>as you would have to exclude IE & Netscape. >>> >>>so >>>this is a >>>-1 for this patch. >>>in order to change this checks need to be there with a directive to >>>ignore them (default:off) >>> >>> >>IMHO, deflating everything is a waste of the computer resources. HTML files >>really compress well. But most of the image files currently supported, e.g., >>PNG, GIF, JPEG are already compressed, and deflating them will really do >>nothing -- just spend your CPU. I think that compressing text/html for browsers >>who send "Accept-Encoding: gzip" is the right approach. A possible enhancement >>is to have a directive (DeflateAddMimeType) which will enable deflating more >>mime types, e.g., text/plain, but these are really rare! Another type which is >>worth compressing is application/postscript, since many viewers (I am not an >>expert which - at least those decendents of GhostScript) are capable of >>viewing gzipped postscript files. The problem with that is that this is not a >>function of the browser, which cannot handle such files, but a function of the >>viewer, so the required "Accept-Encoding: gzip" doesn't prove anything about >>the ability of the external viewer! >> >>To summerize, I suggest to deflate only types which can be handled by the >>browser itself, and which are not already compressed, which amounts to >>text/html or more generally text/* (text/css for instance). >> > > In my mod_deflate module (for Apache 1.3.x) I'd enabled by default > "text/html" only. You can add or remove another type with DeflateTypes > directive. Here are some recomendations: >
This is EXACTLY what we should be doing IMHO. if a person wants to run a SVN server they can add a directive to deflate everything, otherwise it should just do text/html out of the box. we want to make it easy for the 'general' person to use. > application/x-javascript NN4 does not understand it compressed. > text/css the same. > > text/plain Macromedia FlashPlayer 4.x-5.x does not understand it > compressed when get it with loadVariables() function via browser. > text/xml Macromedia FlashPlayer 5.x does not understand it > compressed when get it with XML.load() function via browser. > > application/x-shockwave-flash FlashPlayer plugin for NN4 for Windows > does not understand it compressed. Although plugin for Linux > NN4 work correctly. > > text/rtf MSIE 4.x-6.x understand correctly them > application/msword when compressed. NN and Opera does not. > application/vnd.ms-excel > application/vnd.ms-powerpoint > > Igor Sysoev > >
