All images reloading on revisit

[cafrale]

Some clients are complaining that their sites are completely reloading the images when refresh is hit. As fas as I know the browser reloads the images only if you press CTRL-F5.

They have tryied with windows, linyx, netscape, IE, opera ... No way. It appears the server doesn`t allow cache storing or something like this.

Is there any configuration to be made on cpanel or server-side to solve this ?

I have noticed it even on my site, on a flash animation i have on the top of it, it aways reload, even if I go to another page and click back to the first one (no F5 pressed, just revisiting the page).

Can anyone throw some light on what happens ?

 

[bonnmac]

mod_gzip

If you have mod_gzip installed I have found this to cause this problem. You can tell your clients the following:

Create a .htaccess file with the following line
mod_gzip_on No

and place it in their public_html folder, this should solve the problem. At least it did for me.

 

[dgbaker]

For a global solution add the following to httpd.conf in the <IfModule mod_gzip.c> area

mod_gzip_item_exclude file .jpg

 

[altomarketing]

so why is importa ?

I understand that the main function of mod_gzip is to compress info before sending, to optimize the speed of server , right ?

so

1- if I disable this function for jpg ands gif the images will cache and no longer download on revisiting ?
2- if this mod is using to increase speed by compressing, why disable it the cache on iexplore, the mozilla or opera use cache normally

3-How can i fix this problem without disable mod_gzip function in jpg or gif ?

thanks

 

[aluminous]

3-How can i fix this problem without disable mod_gzip function in jpg or gif ?

I don't know why mod_gzip makes images not cacheable, but in any case the rate of compression of already compressed images can't be very great; I wouldn't worry much about that.

 

[haze]

Re: so why is importa ?

Originally posted by altomarketing
3-How can i fix this problem without disable mod_gzip function in jpg or gif ?

There is no point gziping images, as for the most part they are already compressed. All it does is cause extra, unneeded load on your server. Add the following to your mod_gzip rules in your httpd.conf:

<Files ~ "\.(gif|jpe?g|png|bmp)$">
mod_gzip_on no
</Files>

 

[jmbtech]

file permission for theme folder

Not sure if this will help anyone, but I've had the same issues with images reloading on every page visit to the index.html of the custom theme I've made. After poking around, I've check and when I recompiled apache, I exluded the mod_gzip module, so that wasn't it. Just outta trial & error, I ssh'd into the box to check file permissions on my uploaded theme againsted those shipped with cpanel.

Turns out, mine where mixed permissions from an ftp user account and the cpanel ones were root. Therefore, I quickly chmod'd them to root:root recursivly on my theme folder, and poooof, my image problems disappeared.

Just thought I would share my experience. Let me know if this solves anyone elses issues with image and cpanel themes.

--
jmbtech

 

[Stenny Chong]

Add below line to your mod_gzip config section should fix the image not caching problem.

mod_gzip_send_vary Yes

 

[thechronic]

Amusive has proposed another good solution in this thread