The isRelativeUrl check doesn't allow url with '='

[GMartigny]

Version

module: 5.0.0-1667386184.dfbbb54
nuxt: 2.16

What is expected?

When user load an URL without being logged in, a cookie is set to redirect once logged in.

What is actually happening?

Cookie is not set when URL contains = (an certainly other valid characters)

Steps to reproduce

• Log out
• Navigate to /my-files/TmV2ZXIgZ29ubmEgbGV0IHlvdSBkb3duICE=
• Redirected to /login as expected
• Check that cookie auth.redirect is not set

Additional information

This is due to the isRelativeURL function not accepting =. This should be rework and use a battle-tested library (is-relative) instead of a random regex.

Checklist

• I have tested with the latest Nuxt version and the issue still occurs
• I have tested with the latest module version and the issue still occurs
• I have searched the issue tracker and this issue hasn't been reported yet