The original specifier 'static/vendor/smd.min.js' was a bare module
specifier, which the [HTML spec](https://html.spec.whatwg.org/multipage/webappapis.html#resolve-a-module-specifier)
rejects: relative ES module references must start with '/', './', or
'../'. The block failed silently, window.smd was never set, and live
streaming markdown was broken for all users.
Fix: change to './static/vendor/smd.min.js' — the './'-relative form
satisfies both the ES module spec AND keeps the import resolution
mount-agnostic, so subpath deployments like /hermes/ continue to work.
Tests test_smd_vendor_import_is_mount_agnostic and
test_static_vendor_import_is_relative_to_current_mount updated to
require the './' form and forbid both the bare-specifier and
root-absolute forms.
Adapted from PR #1851 by @ChaseFlorell. Original PR fix used the
root-absolute form which fixed the bare-specifier bug but broke
subpath deployments; the './' form is the only shape that satisfies
both constraints.
Co-authored-by: Chase Florell <ChaseFlorell@users.noreply.github.com>
94aeb538f2
