I am trying to run the quick start code of Real Time API of Google Drive. I believe I did everything right. But I am getting
Error: origin_mismatch
Request
I had same problem with origin_mismatch.
From: Create a client ID section localhost should work and worked for me after small testing.
Origin in Google API i have:http://localhost
URL to address bar in browser:localhost
From the beginning this configuration not works, but after i tried write to address bar: 127.0.0.1->enter->origin_mismatch, it's correct and after again write localhost, now it's works.
Tested same behaviour in Firefox 39 and Google Chrome 37.0.2062.120 Ubuntu 12.04 (281580) (64-bit).