JSON::ParserError in Lti::LaunchesController#show

767: unexpected token at '<!DOCTYPE html><html><head><title>Unexpected error</title></head><body><h3>An unexpected error occured... Sorry!</h3><p>Error code: 500</p></body></html>'

Extracted source (around line #26):
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request = conn.post @tool.oauth2_url, body
JSON.parse(request.body)
end
def body

Rails.root: /app

Application Trace | Framework Trace | Full Trace

Request

Parameters:

{"tool_id"=>"2108", "id"=>"15452"}

Response

Headers:

None