# Description of Changes
Changes
- Use 127.0.0.1 instead of localhost for the local backend. The bundled
backend starts on a random port and binds the IPv4 wildcard, but the
frontend health-checked http://localhost:{port}. On macOS (and some
Linux) localhost resolves to IPv6 ::1 first, so the connection is
refused and every backend-dependent tool shows "backend offline" even
though the backend started fine. Switched getBackendUrl() and the
health-check URL to the 127.0.0.1 loopback literal (already in the Tauri
HTTP capability allowlist, and what the OAuth loopback server already
uses). Client-side tools were unaffected, which matches the reports.
- Fail the desktop build when the bundled JRE is older than the app JAR.
The app JAR is compiled for Java 25, but the bundle could ship an older
runtime/jre (jlink:runtime short-circuits on an existing runtime, and
nothing checked its version), producing UnsupportedClassVersionError at
launch so the backend never starts. Added a jlink:verify task that reads
the jlink release file and fails the build if the bundled JRE major is
below REQUIRED_JAVA (25, kept in sync with build.gradle
modernJavaVersion). It runs after the runtime is staged - including the
short-circuit reuse path that lets a stale JRE slip through.
Cross-platform Node script, no new dependencies.
---
## Checklist
### General
- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] My changes generate no new warnings
### Documentation
- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/devGuide/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)
### Translations (if applicable)
- [ ] I ran
[`scripts/counter_translation.py`](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/docs/counter_translation.md)
### UI Changes (if applicable)
- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)
### Testing (if applicable)
- [ ] I have run `task check` to verify linters, typechecks, and tests
pass
- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md#7-testing)
for more details.
## Summary
Published Docker images (`stirling-pdf:latest`, `:2.13.1`) still shipped
the full `ffmpeg` package even though it was disabled in source back in
#6053.
**Root cause:** `push-docker.yml` passed a hardcoded
`BASE_VERSION=1.0.0` build-arg for the regular image, overriding the
Dockerfile's `ARG BASE_VERSION=1.0.2` default. Base `1.0.0` is the
original base that still does the explicit `ffmpeg` apt install, so the
published image never picked up the removal.
## Summary
- Set `dragDropEnabled: false` on the Tauri window so HTML5 drag events
reach the WebView. Previously the default `true` made Tauri intercept
all drag-drop at the OS level, silently breaking in-page drag-to-reorder
(Pragmatic Drag and Drop in `FileEditorThumbnail` /
`useFileItemDragDrop`) in the desktop build. The Active Files tab
reorder, which feeds Merge ordering, was the user-visible symptom.
- Browser builds are unaffected (tauri.conf.json is desktop-only).
- The OS file-drop pipeline now flows through the existing Mantine
`Dropzone` in `FileEditor.tsx` via HTML5 events instead of the Rust
`WindowEvent::DragDrop` handler in `lib.rs:215`. Verified working.
## Test plan
- [x] Desktop: drag a thumbnail in Active Files past another - row goes
semi-transparent, order updates on drop.
- [x] Desktop: drag a PDF from File Explorer onto the window - file is
added.
- [x] Web build: drag-to-reorder still works (unchanged code path; flag
is desktop-only).
- [x] Merge tool: order set by drag in Active Files is the order used by
the merge output.
## Follow-up (not in this PR)
- `WindowEvent::DragDrop` arm in
`frontend/editor/src-tauri/src/lib.rs:215-229` is now unreachable for
window drops. The `forward_files_to_window` helper still serves the
macOS Finder "Open With" path (`RunEvent::Opened` at lib.rs:230), so
only the DragDrop arm can be deleted. Worth a small cleanup pass later.
# Description of Changes
#6402 introduced a Rust test `refresh_token_fallback.rs`, but it wasn't
moved properly after the restructure of the `frontend/` folder in #6404.
This PR moves the file to the right place, and also hooks up Task and CI
rules for `cargo test` since nothing was actually running the test in
the first place.
