I've used the following information to get mod_pagespeed to inject the GA scripts into my pages: https://developers.google.com/speed/pagespeed/module/filter-insert-ga
Unfortunately we have a reverse proxy setup where the browser requests the page over HTTPS but the server injects the content as HTTP.
Here is the Chrome browser error:
[blocked] The page at 'https://*' was loaded over HTTPS, but ran insecure content from 'http://www.google-analytics.com/ga.js': this content should also be loaded over HTTPS.
I need this module to use the correct protocol when injecting the script i.e. https:// www.google-analytics.com/ga.js (Sorry for the broken URL I can't post more than 2 links)