ComfyUI sends no cache header for .mjs, and the 2.5.1 no-cache header cannot
reach a copy the browser already stored. Firefox then kept running files from
before the update, even through Ctrl+Shift+R, and the preview bar, cards and
editors failed to load.
The server now adds ?v=<tag> to the relative .mjs imports of the pack's
scripts as it serves them. The tag changes whenever any script changes, so
after an update the browser asks for addresses it has never stored. Files on
disk are unchanged. A test fails if a script names a .mjs in a way the tag
would miss.
ComfyUI sends no cache header for .mjs, so after a Manager update a browser
could reuse old shared modules while loading the new entry scripts. The new
entries then imported functions the old modules lack and about a third of the
pack stopped loading.
The pack now serves its .mjs files with Cache-Control: no-cache, and a small
entry (js/cache_guard) refreshes the stored copies and asks for a reload when
a tab runs older files than the installed version. It replaces the old
stale-cache toast in the appearance entry.
ausboss