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When running Kotlin/WasmJS app in Firefox 140 I see this warning in the browser console: `The WebAssembly exception handling 'try' instruction is deprecated and should no longer be used. Please recompile to use the 'try_table' instruction instead.`. Is this a known issue?

there are two different exception handling proposals in WASM,
<https://github.com/WebAssembly/exception-handling/blob/main/proposals/exception-handling/legacy/Exceptions.md>
<https://github.com/WebAssembly/exception-handling/blob/main/proposals/exception-handling/Exceptions.md>

Kotlin/WASM compiles to the legacy proposal by default, while waiting for widespread support of the newer proposal

you can set a compiler flag <https://youtrack.jetbrains.com/issue/KT-66905/K-Wasm-support-new-version-of-exception-handling-proposal>