I'm developing an app that authenticates to salesforce using the oauth2 user-agent flow. It works fine most of the time, but in the last fe days, sometimes I get clipped data in the url fragment. It is missing the access_token and only has a part of the instance_url. Here is an example.
Has anybody else seen this? Any idea on how to fix it? I have tried switching browsers, clearing the cache, clearing the cookies, but no luck.