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few months ago I've installed Google's mod_pagespeed to my server. Everything worked as expected, but yesterday it stopped serve one SVG image and added some attributes to it's <img /> tag: onload="pagespeed.CriticalImages.checkImageForCriticality(this);" and data-pagespeed-url-hash="1225483209".

I'm really don't know what caused the issue, but AFAIK it stopped working without my action. File is presented on server.

The URL of website is https://www.datovasim.cz/ and image is in top right corner of page. File https://www.datovasim.cz/img/gomobil.svg

Michal Pelikán
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The image file has had the namespace definitions removed. I.e. attributes of the form xmlns="something" and xmlns:something="something else" so it's no longer valid as an SVG file.

Robert Longson
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  • Thank you, solved! I switched to HTTPS, so I started using `//` instead of `http://` or `https://` and I changed it automatically for all files on server. I forgot that `` and other similiar tags (such as ``) could cause this beavior when `http://` is replaced by `//`. – Michal Pelikán Feb 26 '17 at 08:59