Fix invalid path concatenation when url has a segment

[moleus]

Description

If the URL ends with a # symbol (e.g., https://my-jenkins.com/job/job-name/job/branch/123/pipeline-graph/#), the application mistakenly sends requests to a nested path, resulting in repeated requests to:

https://my-jenkins.com/job/job-name/job/branch/123/pipeline-graph/pipeline-graph/tree

These requests are triggered every 3 seconds and result 404 errors.

I was able to reproduce this issue in Safari browser, which adds /# in the end of the url after login redirect.

Steps to Reproduce:

1. Open a Jenkins job URL such as:

https://my-jenkins.com/job/job-name/job/branch/123/pipeline-graph/#

2. Now /tree requests are sent to pipeline-graph/pipeline-graph/tree.

How to reproduce in Safari with auth redirect:

1. Click logout in Jenkins
2. Open a Jenkins job URL https://my-jenkins.com/job/job-name/job/branch/123/pipeline-graph
3. Under the hood, the browser performs OAuth redirects (e.g., to Google and back)
4. When Jenkins opens, the URL ends with a /#
5. Lots of 404 in Network tab and empty graph screen

Solution

Use URL.pathname instead of href to get path without query parameters and segments. I have fixed in getTreePath and other places.

Testing done

Submitter checklist

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• Ensure that the pull request title represents the desired changelog entry
• Please describe what you did
• Link to relevant issues in GitHub or Jira
• Link to relevant pull requests, esp. upstream and downstream changes
• Ensure you have provided tests - that demonstrates feature works or fixes the issue

[timja]

Thanks!