The ESP32 examples now default to the in-browser JS engines, whose lwIP
serves the sketch's HTTP server from the simulation tab itself. Opening
the IoT gateway in a new tab backgrounds that tab, the browser throttles
its timers, and the in-chip server can't answer before the proxy's
timeout — the exact failure the Pico W iframe path already solved.
- WifiStatus grows an inBrowser flag (set by the overlay's JS bridges);
the serial-monitor link and the WiFi badge now open the in-app iframe
for any board that carries it, not just pi-pico-w.
- /api/gateway polls ~1s before answering 404: the net bridge dials on
'got_ip', which races the sketch printing its URL, so a fast click
used to land before the bridge registered.
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