fix: update logic for URLs ending with '/'

[alexander-akait]

Summary

fix - logic for trailing slash

What kind of change does this PR introduce?

fix

Did you add tests for your changes?

WIP

Does this PR introduce a breaking change?

No

If relevant, what needs to be documented once your changes are merged or what have you already documented?

No

Use of AI

Nothing

[changeset-bot]

⚠️ No Changeset found

Latest commit: ee4f6eb

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes changesets to release 1 package

Name	Type
webpack-dev-middleware	Major

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[alexander-akait]

TODOs:

• more tests around index
• make it async

[codecov]

Codecov Report

❌ Patch coverage is 87.50000% with 11 lines in your changes missing coverage. Please review.
✅ Project coverage is 95.28%. Comparing base (a0da5d0) to head (ee4f6eb).
⚠️ Report is 7 commits behind head on main.

Files with missing lines	Patch %	Lines
src/middleware.js	85.33%	11 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2290      +/-   ##
==========================================
- Coverage   96.11%   95.28%   -0.83%     
==========================================
  Files           3        3              
  Lines         900      934      +34     
  Branches      266      282      +16     
==========================================
+ Hits          865      890      +25     
- Misses         35       44       +9     

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