Matching jwt token against a regex #38

Hey Guys,

We are facing some issues with the jsonwebtoken library when we create our own token following the JWT standards (using C language). Unfortunately the official C library doesnt compile well in our Windows environment.

After debugging for days we came to the conclusion that the regex used in the jws library verify-stream.js file does not allow for equals sign (=), hence the regex validation fails.

Currently the regex looks like as follow -

const JWS_REGEX = /^[a-zA-Z0-9\-_]+?\.[a-zA-Z0-9\-_]+?\.([a-zA-Z0-9\-_]+)?$/;

Suggested change is to include the (=) sign as well -

const JWS_REGEX = "^[A-Za-z0-9-_=]+\.[A-Za-z0-9-_=]+\.?[A-Za-z0-9-_.+/=]*$";

Thanks