emscripten-core
-s MIN_SAFARI_VERSION=101000 and --closure 1 suddenly produces warnings
When I specify the lowest Safari version allowed
-s MIN_SAFARI_VERSION=101000
and I add --closure 1, I get warnings like
WARNING - [JSC_TYPE_MISMATCH] actual parameter 2 of XMLHttpRequest.prototype.open does not match formal parameter
found : (Request|URL|string)
required: (URL|string)
69| request.open(options.method || "get", url, true);
^^^
or
/var/folders/mh/vg4fw0d57pgf9n3qwzwqts0c0000gn/T/emscripten_temp_ywbuzjuq/eqcrypt.jso1.js:81:19: WARNING - [JSC_TYPE_MISMATCH] actual parameter 1 of XMLHttpRequest.prototype.send does not match formal parameter
found : (ArrayBuffer|ArrayBufferView|Blob|FormData|ReadableStream|URLSearchParams|null|string)
required: (ArrayBuffer|ArrayBufferView|Blob|Document|FormData|null|string|undefined)
81| request.send(options.body || null);
^^^^^^^^^^^^^^^^^^^^
This only happens with lowest Safari version. Lowest Firefox or lowest Chrome version will not cause any such warnings to appear.
Version of emscripten/emsdk:
emcc (Emscripten gcc/clang-like replacement + linker emulating GNU ld) 3.1.71 (4171ae200b77a6c266b0e1ebb507d61d1ade3501)
clang version 20.0.0git (https:/github.com/llvm/llvm-project d6344c1cd0d099f8d99ee320f33fc9254dbe8288)
Target: wasm32-unknown-emscripten
eThread model: posix
InstalledDir: /Library/Automount/Internal/Applications/DevTools/emsdk/upstream/bin
ee
Do you know where the request.open and request.send methods are coming from?
I don't see them appearing like that anywhere in the emscripten code.
Can you share the full link command you used?
Oh wait, I think I see the problem. It looks like you are using an older version of emscripten prior to #23118 which included a fetch polyfill in some cases.
Can you try upgrading to 3.1.74 or above which have the polyfill removed?
The polyfill here is not actually needed since fetch support was added in safari 10.1: https://caniuse.com/fetch