Constrain the copy-only subscription page to the dynamic viewport, wrap long localized text, and infer text direction so mobile browsers cannot render a horizontally shifted desktop-width page. Add regression coverage for the responsive layout contract.
* fix(sub): show copy-only page for browser subscription visits
Browser navigation to /sub previously rendered the normal subscription page, which exposed subscription material in page data or raw base64 depending on request headers. Keep VPN clients on the raw subscription body, but classify browser document requests and return a neutral static copy-only HTML page with no embedded share links or page data.
This preserves the C1 LimitIP parser fix in the same master candidate while avoiding a DE rollback of the browser subscription UX.
* fix(sub): keep the themed page for an explicit html request
Only implicit browser navigation is downgraded to the copy-only page. An
operator who appends html=1 or view=html already holds the URL, so the
themed subscription page keeps rendering for them and serveSubPage stays
in use.
* fix(sub): keep browser pages copy-only
Sanaei