Added User-Agent in graph.py to prevent server blocking #224
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Many websites are configured to block requests with a missing User-Agent For me this was causing an error for FETCH_HTTP_NODE on validating my assertion json url: "Unknown Content-Type (Not image/png or image/svg+xml)" It was solved after adding 'User-Agent': 'Open Badges Validator Core' to the headers on line 40 of verifier/tasks/graph.py
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Many websites are configured to block requests with a missing User-Agent
For me this was causing an error for FETCH_HTTP_NODE on validating my assertion json url:
"Unknown Content-Type (Not image/png or image/svg+xml)"
It was solved after adding
'User-Agent': 'Open Badges Validator Core'
to the headers on line 40 of verifier/tasks/graph.py