Fix issue where the replacement of double-slash was over-aggressive

[vraravam]

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Description of Change

The previous fix for handling trailing / in the urls was overly aggressive in removing double-/ - due to which if an embedded url in the query string was present, that would also go from http://<> to http:/<>. This PR fixes that and also adds a unit test for the same to avoid regression.
Fixes #141

Motivation and Context

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Checklist

• My pull request is properly named
• The changes respect the code style of the project (npm run prepare-code)
• npm test passes
• I tested/previewed my changes locally

Release Notes