lightyear: WebTransport connection rejected on FF 124-127

According to https://caniuse.com/webtransport, FF 124 is supported?

On Firefox 124, MacOS (Silicon), I get a vague WebTransport connection rejected error.

I tried connecting from [::1]:8080, localhost:8080, and 127.0.0.1:8080 with Trunk, no dice.

Chrome works fine.

Stack trace:

INFO lightyear/src/client/networking.rs:385 calling connect on netclient [simple_box-1b3dc2302ae3b879.js:494:21](http://[::1]:8080/simple_box-1b3dc2302ae3b879.js)
INFO lightyear/src/transport/webtransport/client_wasm.rs:39 Starting client webtransport task with server url: https://127.0.0.1:5000/ [simple_box-1b3dc2302ae3b879.js:494:21](http://[::1]:8080/simple_box-1b3dc2302ae3b879.js)
INFO lightyear/src/connection/netcode/client.rs:521 client connecting to server 127.0.0.1:5000 [1/1] [simple_box-1b3dc2302ae3b879.js:494:21](http://[::1]:8080/simple_box-1b3dc2302ae3b879.js)
INFO lightyear/src/transport/webtransport/client_wasm.rs:73 Starting webtransport io thread [simple_box-1b3dc2302ae3b879.js:494:21](http://[::1]:8080/simple_box-1b3dc2302ae3b879.js)
panicked at lightyear/src/transport/webtransport/client_wasm.rs:84:18:
failed to connect to server: Custom { kind: Other, error: "failed to connect to server: Error(JsValue(WebTransportError: WebTransport connection rejected\n))" }

Stack:

__wbg_get_imports/imports.wbg.__wbg_new_abda76e883ba8a5f@http://[::1]:8080/simple_box-1b3dc2302ae3b879.js:519:21
console_error_panic_hook::hook::hbd095300cc1546a2@http://[::1]:8080/simple_box-1b3dc2302ae3b879_bg.wasm:wasm-function[14621]:0x1772630
core::ops::function::Fn::call::h29984b27337498f0@http://[::1]:8080/simple_box-1b3dc2302ae3b879_bg.wasm:wasm-function[107601]:0x231d087
std::panicking::rust_panic_with_hook::h1e6ac5d404b8e31b@http://[::1]:8080/simple_box-1b3dc2302ae3b879_bg.wasm:wasm-function[34675]:0x1f180c6
std::panicking::begin_panic_handler::{{closure}}::h24b0f4622f2766a5@http://[::1]:8080/simple_box-1b3dc2302ae3b879_bg.wasm:wasm-function[40537]:0x2047936
std::sys_common::backtrace::__rust_end_short_backtrace::h19f35d272c126e7c@http://[::1]:8080/simple_box-1b3dc2302ae3b879_bg.wasm:wasm-function[106088]:0x2319bff
rust_begin_unwind@http://[::1]:8080/simple_box-1b3dc2302ae3b879_bg.wasm:wasm-function[53591]:0x21c0d8c
core::panicking::panic_fmt::h87755523850ece9e@http://[::1]:8080/simple_box-1b3dc2302ae3b879_bg.wasm:wasm-function[55819]:0x21e4894
core::result::unwrap_failed::hd86007cff22dcd83@http://[::1]:8080/simple_box-1b3dc2302ae3b879_bg.wasm:wasm-function[43586]:0x20bdd66
bevy_tasks::single_threaded_task_pool::TaskPool::spawn::{{closure}}::h17191fcf8a288f1b@http://[::1]:8080/simple_box-1b3dc2302ae3b879_bg.wasm:wasm-function[3063]:0xb7431b
wasm_bindgen_futures::queue::Queue::new::{{closure}}::hb4c8b5dc07879a85@http://[::1]:8080/simple_box-1b3dc2302ae3b879_bg.wasm:wasm-function[13464]:0x16b4015
<dyn core::ops::function::FnMut<(A,)>+Output = R as wasm_bindgen::closure::WasmClosure>::describe::invoke::h0154140b370f79e4@http://[::1]:8080/simple_box-1b3dc2302ae3b879_bg.wasm:wasm-function[61984]:0x222cf90
__wbg_adapter_84@http://[::1]:8080/simple_box-1b3dc2302ae3b879.js:265:10
real@http://[::1]:8080/simple_box-1b3dc2302ae3b879.js:210:20


[simple_box-1b3dc2302ae3b879.js:535:21](http://[::1]:8080/simple_box-1b3dc2302ae3b879.js)
Uncaught RuntimeError: unreachable executed
    __wbg_adapter_84 http://[::1]:8080/simple_box-1b3dc2302ae3b879.js:265
    real http://[::1]:8080/simple_box-1b3dc2302ae3b879.js:210
[simple_box-1b3dc2302ae3b879_bg.wasm:36840801:1](http://[::1]:8080/simple_box-1b3dc2302ae3b879_bg.wasm)
Uncaught (in promise) 
WebTransportError { source: "session", streamErrorCode: null, name: "WebTransportError", message: "WebTransport connection rejected", code: 0, result: 0, filename: "", lineNumber: 0, columnNumber: 0, data: null }
​
code: 0
​
columnNumber: 0
​
data: null
​
filename: ""
​
lineNumber: 0
​
message: "WebTransport connection rejected"
​
name: "WebTransportError"
​
result: 0
​
source: "session"
​
stack: ""
​
streamErrorCode: null
​
<prototype>: WebTransportErrorPrototype { source: Getter, streamErrorCode: Getter, stack: "", … }

ERROR  No work has been submitted for this frame log.target = "wgpu_core::present";
log.module_path = "wgpu_core::present";
log.file = "/Users/simbleau/.cargo/registry/src/index.crates.io-6f17d22bba15001f/wgpu-core-0.19.3/src/present.rs";
log.line = 341; 156 [simple_box-1b3dc2302ae3b879.js:494:21](http://[::1]:8080/simple_box-1b3dc2302ae3b879.js)