Backend JWT validation failure

[Manasha11]

Description

Backend JWT validation is failing due to the padding applied in the token.

Steps to Reproduce

• Enable backend JWT using below configs in deployment.toml.

[apim.jwt]
enable = true
encoding = "base64url"
...

• Restart the server and invoke an API.
• Grab the backend JWT and validate using https://jwt.io/.

It will prompt the below warning:
Warning: Looks like your JWT signature is not encoded correctly using base64url ([https://tools.ietf.org/html/rfc4648#section-5).](https://tools.ietf.org/html/rfc4648#section-5%29.) Note that padding ("=") must be omitted as per https://tools.ietf.org/html/rfc7515#section-2

Version

4.1.0

Environment Details (with versions)

No response