I deployed an Atlassian connect addon to a AWS Lambda function. When I try to install it, it results in the error message
Problem accessing the file https://kx2jutxri2.execute-api.us-east-1.amazonaws.com/latest/atlassian-connect.json
When I load the url from a browser it correctly returns the atlassian-config.json. I see no relevant log entries in the browser console. No subsequent call seems to arrive at the lambda function after the /atlassian-connect.json request.
How can I debug this?