Allow godot html5 test export to be accessed from other devices in local network

Godot Version

v4.5.1.stable.official [f62fdbde1]

Question

In Defold, when we ran our game on the web directly from the game engine for testing, we can also access it from our phone as long as it’s in the same local network.

This allowed us to quickly test mobile html5 game.

Unfortunately, by default Godot can’t do this.

Is there a way to make it work?

this?

hmm yes, or at least it’s supposed to.

I set Export > Web > HTTP Host editor setting to 0.0.0.0 then enable TLS, but I still can’t access the test build from my phone connected to the same router.

Different error message.

In my pc where the server ran with Not Secure warning. The game worked fine.

2026-02-11 17_32_50-AlienGenocide (DEBUG) - Thorium

In my phone it still doesn’t work. While earlier it says request timed out, not it’s just unable to connect.

I wonder if it’s bug or I just misunderstand something.