Every one of these paths checked a string that the browser reinterprets
afterwards. isSafeUrl now hangs the value on an <a> and reads back
probe.protocol, so the check sees what the browser will see: a pre-parse
test reads "javascript:" as a relative path and passes it, and the
HTML parser then decodes it to "javascript:".
marked passes raw HTML through and emits hrefs unescaped. renderMarkdown
escapes the angle brackets before parsing, parses into an inert DOMParser
document where no script runs and no image loads, and drops anchors and
images whose scheme is not http, https or mailto. Blockquotes and
<autolinks> stop working as a result; neither appears in the configuration.
modalTitle and the alternatives list interpolated subitem.name and
icon.class into innerHTML. Both are built as nodes now. name is a
translatable key, so it arrives from the machine-written catalogues.
The link kept its click handler and its class across popups, because one
anchor serves all of them: a later, unrelated click opened whatever an
earlier popup pointed at, and addEventListener stacked one handler per
open. Both are reset per popup and the handler is assigned, not added.
openIframe guards its own argument. Removing the href alone left the
handler passing the raw URL on, and ?iframe= in the query string reaches
the same sink with no configuration involved at all.
Verified in headless Chromium: decimal and hex character references,
	- and 
-split schemes, reference-style links, raw HTML as a
link's text, and the two name sinks all executed before these changes.
injection.spec.js keeps all fifteen payloads.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
