There seems to be a 200k content size limit somewhere in the DaisyDiff merge service. Seeing this in the error log:
ServiceUnavailableError: 'Service responded with status 500 Form too large 254119>200000'
Let's increase the limit for now and test with very long page. Later when we do merging in python we should see if this might be a problem too.
Fixes #222 Increased DaisyDiff form size to 800kb from 200kb