The http copy of the page (it can reach a node's plain ws://) is never
cross-origin isolated, so it has no SharedArrayBuffer and no pthreads.
web/build.sh web-nothreads (also built by web) makes a second bundle with
WADA_NO_THREADS: the FreeRTOS tasks are Emscripten fibers (Asyncify) run
after each UI step, every wait a yield point (freertos_coop.cpp); delay,
yield and esp_timer follow; HTTP from a task is an async fetch it waits
for. The page loads nt/wadamesh.js when it is not isolated (serve.py
serves nt/), and never shows developer hints off localhost.
Chooser: on http, Wi-Fi with a link to the https copy for USB, Bluetooth
and the location; on https, "Open the Wi-Fi version" opens the http copy
with the address (#wifi=...), and a ws:// connect that fails there as mixed
content (or times out) explains it with the same button.
Checked against http://<LAN IP>: the browser tour (persistence, tiles,
Store, backups) and the mock-node tour pass on the no-threads bundle.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Location: the web board has CAP_GPS 1. web/platform/WebLocation.* is its
SensorManager + LocationProvider, fed by navigator.geolocation (page shell,
only while the UI's GPS is on, the prompt deferred to a tap) or WADA_GPS on
the host, so the GPS switch, status, map centring, distances and
wada.sys.gps (with speed/course) work unchanged. The position reaches a
connected node (CMD_SET_ADVERT_LATLON, displaced by the Location privacy
radius) only while the node's advert-location setting is "share"; the demo
moves its cast to the visitor's location.
Map tiles: wadaHttpRequest serves the firmware's default tile server only:
a synchronous emscripten_fetch from the tile_fetch pthread to the
same-origin tiles/ path (serve.py proxies it; nginx location for the site),
plain HTTP natively. WiFi reports connected while the browser is online.
Fixes the static-init order of the host VFS (the UI's own tiles LittleFS
copied an empty impl).
Polish: Lua apps that need the board's own radio carry "radio": "own" in the
catalog (baked under CAP_RADIO_TOOLS, greyed in the Store); mouse wheel and
trackpad scrolling; Settings > Wi-Fi / Bluetooth explain the page bar
(CAP_WIFI_SETUP / CAP_BT_SETUP); no Download mode (CAP_USB_FLASH); no
receiver settings on Settings > GPS (CAP_GPS_RECEIVER).
Tests: webtest checks the map centres on Playwright's Ghent location and
shows tiles; nodetest checks the location privacy rule against the mock node.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Connect opens a chooser with the transports the browser has (Web Serial and
Web Bluetooth on Chrome / Edge, WebSocket to the node's port 8765 everywhere,
with a note where some are missing). The choice is kept and the UI reboots
into it; each backend has its own data dir (/data/demo, /data/node-<key>) so
demo and node data never mix; a reload reconnects; Disconnect returns to the
demo. The bar shows Demo / Connecting / Connected: <node> over <link> /
Reconnecting, and Reconnect / Pair again when the browser needs a click.
Transports retry a lost link and reopen a granted USB port on plug-in. A node
skips the demo's setup wizard. A link lost mid-handshake no longer reports
ready. web/build.sh nodetest: the flow end to end against the mock WS node.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
