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improvise/web/index.html
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Edward Langley d120596a10 docs: the supported way to reach a TUI-hosted document over https
Per the user's ruling on improvise-o8fa: document the reverse-proxy path
properly, implement no TLS.

The existing text already named the symptom correctly -- an https origin
refuses `ws://` as mixed content, `improvise-ws-server` has no TLS, so
`wss://` is unobtainable from it -- but it gestured at "a reverse proxy or a
tunnel" and stopped, which is not something a reader can follow. So README
gains a worked Caddy example (Caddyfile, both commands, and the `?ws=` value
to reload with), the nginx difference that actually bites (`proxy_http_version
1.1` plus the Upgrade/Connection headers, without which the handshake is
answered as an ordinary request), the cloudflared/ngrok one-liners, and the
note that `--bind` should be left at loopback behind a proxy on the same host.

It also says the cost rather than papering it: the documented path to sharing
involves a second piece of software, which is a poor answer for a tool whose
selling point is being one binary. And it says what that cost buys against --
the standalone worker deployment is the point of the Pages site and needs no
server at all, and `http://localhost` pairing needs none of this either.

Native `wss://` is recorded as DECLINED WITH REASON rather than left as a gap.
The substance is the certificate, not rustls: a self-signed cert makes the
browser refuse the socket with no usable error, because a websocket handshake
has no interstitial to click through. A real cert or mkcert are the only
pleasant options and both are a second piece of software too -- so the choice
is not one binary versus two, it is two either way, with one option
additionally shipping a TLS stack in a pivot-table binary.

web/index.html is the second home for the same fact and is updated to point at
the worked example rather than restating it (gotcha 48: a fact stated twice is
a grep). Both were checked for text the correction left stale.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-09-19 22:38:28 -07:00

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3.6 KiB
HTML

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>improvise</title>
<link rel="stylesheet" href="./style.css" />
</head>
<body>
<!--
The browser shell (improvise-cr3, improvise-djm).
Deliberately four elements and no framework. Everything that could be
*wrong* — what a cell is, whether it may be typed into, where the
selection sits, how the category tree flattens — is decided in Rust and
arrives already decided (see `render.rs`). This page paints it.
Build both wasm bundles first:
./web/build.sh
then serve this directory over http (a module script will not load from
file://):
python3 -m http.server 8080 --directory web
That is the whole standalone deployment: the document lives in an
in-page Web Worker and persists to this browser's private storage.
?doc= and ?seed= name the document and the file it is first seeded from.
To talk to a separate `improvise-ws-server` process instead — which is
how a document open in the TUI is shared — pass ?ws=host:port; the
scheme defaults to wss:// on https and ws:// on http.
-->
<header>
<h1>improvise</h1>
<span id="view-name"></span>
<span id="mode"></span>
<span id="hint"></span>
<span id="status" role="status"></span>
</header>
<!--
This page is the *client* half and nothing else: it holds no model. What
it now has is a peer it can always reach — a Web Worker in this same tab
hosting the whole App over OPFS (improvise-9x6, improvise-djm) — so a
copy served from a static host, GitHub Pages included, is a working
application rather than a client with nowhere to connect.
The notice below stays static HTML rather than something app.js decides,
for the same reason as before: it is true on every load in either mode,
and a page that cannot reach its peer cannot be trusted to explain why.
What the peer is actually *doing* — starting, connected, unreachable,
gone — is live, and app.js writes it to #status.
-->
<p id="backend-notice">
Everything here runs in this tab: the document lives in a Web Worker
and is saved to this browser's private storage, so edits survive a
reload and never leave the machine. Load a different document with
<code>?doc=name.improv</code>, seeded from
<code>?seed=url</code>. To open a document hosted by a separate
process instead, run
<code>improvise-ws-server model.improv --port 8787</code> and reload
with <code>?ws=host:port</code>. <strong>The scheme defaults to
<code>wss://</code></strong>, because this page is served over https and
an https origin refuses a <code>ws://</code> address as mixed content.
Note that <code>improvise-ws-server</code> speaks plain
<code>ws://</code> only, so reaching it from <em>this</em> page means
terminating TLS in front of it with a reverse proxy or a tunnel — the
README has a worked Caddy example. Served over
<code>http://localhost</code> the same page defaults to
<code>ws://</code> and pairs with it directly, with nothing in between;
that is the case the pairing is really for. Sharing a document is what
the server is for — not running one is what everything above is for.
</p>
<main>
<aside id="categories" aria-label="Categories"></aside>
<div id="grid" tabindex="0" aria-label="Grid"></div>
</main>
<script type="module" src="./app.js"></script>
</body>
</html>