We recently tried Google’s Pagespeed Service to see if it was quicker and easier than using a CDN. Quick answer – it didn’t help us too much. But I did encounter a number of weird 404’s when testing it out that I thought I might document.
Before we made any permanent changes we of course wanted to test it out locally. We did so by modifying our proxy settings for the site we were testing. We have several resources on amazon cloudfront, and some of them just weren’t getting loaded properly!
It had to do with using “Proxy Switchy!” to run our test. I had set up a different proxy that I could switch to when I wanted to test so that I could try side-by-side tests easily. But for some reason that wasn’t working. If you follow the recommended settings Google suggests you won’t have this issue. Just modify your main proxy connection instead of creating a separate one to test with.
Hope that helps!