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Preview: pop out a rendered HTML page to the system browser #2143
Description
Important
Problem — A researcher who wants the dashboard on a second monitor has no way to open the previewed page in a browser: the bridge's open-external path passes only https URLs.
Approach — A pop-out control on rendered HTML posts a dedicated bridge message carrying the file's absolute path; the extension opens it with the system handler only if it is an existing local .html/.htm file, and names the reason otherwise (remote window, missing file, wrong type).
Scope — in: control, message, extension handler · out: serving the page over HTTP.
Acceptance Criteria
- The control appears only for rendered HTML and posts the message with an absolute path.
- The extension opens an existing local
.html/.htmfile in the system browser. - A relative path, a missing file, a non-HTML extension, or a remote editor window is refused with a named warning and nothing opens.
Testing Decisions
Extend the chat bridge tests for the new message kind (accept + each refusal).
Key Decisions
A new message kind rather than widening open-external: the https-only rule stays intact, and the type restriction stops the bridge from launching arbitrary local files.
Activity