[Webkit-unassigned] [Bug 198276] New: Web Inspector: source maps: original source not shown when in nested folder

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=198276

            Bug ID: 198276
           Summary: Web Inspector: source maps: original source not shown
                    when in nested folder
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Inspector
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: gibatronic at gmail.com
                CC: inspector-bugzilla-changes at group.apple.com

Created attachment 370693

  --> https://bugs.webkit.org/attachment.cgi?id=370693&action=review

Screen capture demonstration

Overview:
Both debugger and resources tabs don't show the original source file if its path contains more than one folder.

Steps to Reproduce:
1. Go to https://github.com/
2. Open web inspector
3. Go to the debugger tab
4. Expand the source folder tree to locate "apps/assets/modules/github"

Actual Results:
The tree item for "apps/assets/modules/github" has no children, empty.

Expected Results:
The tree item for "apps/assets/modules/github" should contain its children.

Build Date & Hardware:
Safari 12.1.1
macOS 10.14.5

Additional Information:
Does not happen in other browsers, I've checked with Chrome 74.0.3729.169 and Firefox 67.0
A bare minimum project is available to reproduce the issue at https://github.com/gibatronic/webpack-Safari-nested-folder-source-map-issue

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