HTTP Validation fail

Hi All,

Even we are facing the same issue of http-challenge alone failing.
If we try to access the .well-known/acme-challenge/ from remote , it is working perfectly fine.

The only problem is with the lets encrypt docker with the webroot plugin.

We are getting 404 Error since we have already allowed / whitelisted the URL path in our nginx webserver.
FailedChallenges: Failed authorization procedure. test.manage.iotium.io (http-01): urn:acme:error:unauthorized :: The client lacks sufficient authorization :: Invalid response from http://test.manage.iotium.io/.well-known/acme-challenge/XyLptqPedDc9c03494HyQ-UPIOSr2iAtzhysJKJDBIY: "

404 Not Found

404 Not Found


"

Failed authorization procedure. test.manage.iotium.io (http-01): urn:acme:error:unauthorized :: The client lacks sufficient authorization :: Invalid response from http://test.manage.iotium.io/.well-known/acme-challenge/XyLptqPedDc9c03494HyQ-UPIOSr2iAtzhysJKJDBIY: "

404 Not Found

404 Not Found


"

Another observation is that there is “:” at the end of the challenge url . Is this causing any issues.

Any idea how to resolve this issue.