pagination permalink includes pagination link double slash

[heowc]

Have you read the Contributing Guidelines on issues?

• I have read the Contributing Guidelines on issues.

Prerequisites

• I'm using the latest version of Docusaurus.
• I have tried the npm run clear or yarn clear command.
• I have tried rm -rf node_modules yarn.lock package-lock.json and re-installing packages.
• I have tried creating a repro with https://new.docusaurus.io.
• I have read the console error message carefully (if applicable).

Description

I upgraded from beta-15 to beta-17 and found a bug during this. The expected PR is #6221.

If basePageUrl is /, double slash is inserted.

See link: https://github.com/facebook/docusaurus/pull/6221/files#diff-34c6928dee2cfb000cac2409e1279076a6a8b39cc7540cb53ba65bdbb42c6903R75

Reproducible demo

https://heowc.dev/

Steps to reproduce

check next page link

Expected behavior

go to next page

Actual behavior

go to page/2

Your environment

• Public source code:
• Public site URL:
• Docusaurus version used:
• Environment name and version (e.g. Chrome 89, Node.js 16.4):
• Operating system and version (e.g. Ubuntu 20.04.2 LTS):

Self-service

• I'd be willing to fix this bug myself.

[Josh-Cena]

Thanks for reporting! We have a utility method in @docusaurus/utils called normalizeUrl, so if you want to send a PR, just refactor the method to use that instead.

[heowc]

Thanks for reporting! We have a utility method in @docusaurus/utils called normalizeUrl, so if you want to send a PR, just refactor the method to use that instead.

Thanks for the quick response. I have already prepared the relevant PR. 😄