Which filter is rewriting the image names?

MikeD

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Mar 16, 2011, 5:27:56 PM3/16/11

to mod-pagespeed-discuss

I have noticed that image files are being rewritten, for no apparent
reason. For example:
012o-0098-066.jpg
is being rewritten as
012o-0098-066.jpg.pagespeed.ce.Yu7JkeEAqV.jpg

Note that

ModPagespeedDisableFilters rewrite_images

is set. So all the extra stuff just adds bytes on to my requests, and
will ruin the image links that are in google images.

Which filter do I have to disable to make this stop?

...Mike

Joshua Marantz

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Mar 16, 2011, 5:35:45 PM3/16/11

to mod-pagesp...@googlegroups.com, MikeD

On Wed, Mar 16, 2011 at 5:27 PM, MikeD <photos...@gmail.com> wrote:

I have noticed that image files are being rewritten, for no apparent
reason. For example:
012o-0098-066.jpg
is being rewritten as
012o-0098-066.jpg.pagespeed.ce.Yu7JkeEAqV.jpg

Most likely the reason was that mod_pagespeed believed it could cache your image for a longer period of time, without compromising your ability to change it, by embedding a content-hash in your URL. mod_pagespeed will extend the cache lifetime of resources cached for less than a month. It extends the lifetime to 1 year.

I don't see why it would ruin the image links in Google Images -- the original image links will still work.

ModPagespeedDisableFilters rewrite_images

is set. So all the extra stuff just adds bytes on to my requests, and
will ruin the image links that are in google images.

Which filter do I have to disable to make this stop?

You can make it leave all jpg files alone with

ModPagespeedDisallow *.jpg

Sorry about that directive not applying to trim_urls, but it will apply to cache-extension -- we'll enter a bug for the trim_urls issue.

-Josh

Shawn Ligocki

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Mar 16, 2011, 5:42:49 PM3/16/11

to mod-pagesp...@googlegroups.com, MikeD

This is from the extend_cache filter. It extends the cache lifetimes of resources. You can disable all rewriting of images with:

ModPagespeedDisallow *.jpg

ModPagespeedDisallow *.png

...

-Shawn

On Wed, Mar 16, 2011 at 5:27 PM, MikeD <photos...@gmail.com> wrote:

MikeD

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Mar 16, 2011, 5:41:05 PM3/16/11

to mod-pagespeed-discuss

Thanks Josh. It's a pretty sweet mod, and I'm keep to use it...just
wanted to make sure I understood correctly. You're right: the google
images thing isn't true since the original file is still
accessible...my mistake. I've put in the chunk you suggested, and
images are back to normal, thanks.

The great reason for open testing is to find issues, so I'm glad to
have found one for you (the trim_urls thing).

Thanks!

...Mike

On Mar 16, 5:35 pm, Joshua Marantz <jmara...@google.com> wrote:

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