Third party API tryout fails when Auth header is empty

[Piumal1999]

Description

If the auth header field is empty, the swagger ui fails to execute the endpoint. It also shows an empty header with a : in a

Steps to Reproduce

1. Create a third part API with publisher portal
2. Go to the Dev portal API Console Try out.
3. Clear the authentication header and try out an endpoint

Affected Component

APIM

Version

4.4.0

Environment Details (with versions)

MacOS Chrome

Relevant Log Output

No response

Related Issues

#3153

Suggested Labels

No response