Container restart / in-place upgrade left the previous service worker still
controlling open tabs. Its fetch handler intercepted 'static/style.css',
matched the unversioned URL exactly against its old shell cache, and returned
the OLD CSS — while the JS files (which already carry ?v=__WEBUI_VERSION__)
hit the cache as misses and loaded fresh from network. New JS + old CSS
broke the layout until a force refresh bypassed the SW.
Fix is a 1-line attribute change plus aligning the SW pre-cache list:
* static/index.html: add ?v=__WEBUI_VERSION__ to the style.css link, matching
the pattern already in use for every JS file in the page.
* static/sw.js: add the same ?v=__CACHE_VERSION__ suffix to every versioned
entry in SHELL_ASSETS so that pre-cache URLs match what the page actually
requests. Unversioned entries (root, manifest, favicons) stay unversioned.
Tests:
* New regression test_index_versions_stylesheet (lock the href) and
test_sw_shell_assets_match_versioned_asset_urls in test_pwa_manifest_sw.py.
* test_workspace_panel_preload_marker_restored_in_head in test_sprint37.py
loosened to match the css link prefix (preserves the ordering invariant).
Verified live on port 8789: served HTML carries
'static/style.css?v=v0.50.275-dirty' and SW SHELL_ASSETS receive the
matching VQ at request time.
Closes#1507.
4fea813adc
