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atlassian-sourcetree

Sourcetree cannot refresh OAuth token, I get error ERR_SSL_PROTOCOL_ERROR

When using Atlassian's Sourcetree I try and and "Refresh OAuth Token" and I see this error:

This site can’t provide a secure connection
localhost sent an invalid response.
Try running Windows Network Diagnostics.
ERR_SSL_PROTOCOL_ERROR
Solution

  • The issue here is we were developing a website that sets the HSTS header such that all localhost requests now require HTTPS.

    The work-around is to remove localhost from your domain security policies.
    If Chrome is your browser, you can do that here: chrome://net-internals/#hsts
    Under the heading Delete domain security policies enter localhost in the 'domain' input and press delete

    Now try and "Refresh OAuth Token" again.