TIC-80 also has WASM support but is a more capable console IMO. Here for example is a rust template: https://github.com/nesbox/TIC-80/tree/main/templates/rust
I fixed it with starting firefox with "firefox -p". Then create a new profile. Everything should work now. Now close firefox, run "firefox -p" again and reload your old profile. Now it should work. At least for me.
TIC-80 also has WASM support but is a more capable console IMO. Here for example is a rust template: https://github.com/nesbox/TIC-80/tree/main/templates/rust
I fixed it with starting firefox with "firefox -p". Then create a new profile. Everything should work now. Now close firefox, run "firefox -p" again and reload your old profile. Now it should work. At least for me.