Do protocol relative urls work cross-platform?

Question

I often use the // relative URI hack. Example:

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"></script>

Mostly because of this post: Is it valid to replace http:// with // in a <script src="http://...">?.

However, a guy I am working with on a project says this doesn't work on Mac (Chrome, Firefox, and Safari) or iDevices.

Not having a Mac or said devices, I can't verify it, and it works fine on Windows. Can anyone confirm this?

Answer 1

I can't test it as I don't have a Mac, but there is no reason to believe that mac browsers do not follow RFC 3986 Section 4.2 when resolving URLs.

Your friend probably meant something else.