Emscripten Fetch API: --proxy-to-worker + -sUSE_PTHREADS cannot be used together

I want to use synchronous fetches of the emscripten fetch api.When I set the compilation parameters according to the document prompts, the compilation will report an error.

Compile parameters:

   QMAKE_LFLAGS += -s FETCH=1 -s STACK_OVERFLOW_CHECK=1 -s ALLOW_MEMORY_GROWTH=1 -s PTHREAD_POOL_SIZE_STRICT=0 -s PTHREAD_POOL_SIZE=100 -s DETERMINISTIC=1 --profiling-funcs -g -s USE_PTHREADS=1 --proxy-to-worker

Modify the compilation parameters and compile according to the above prompts. The following error occurs.

Compile parameters:

   QMAKE_LFLAGS += -s FETCH=1 -s STACK_OVERFLOW_CHECK=1 -s ALLOW_MEMORY_GROWTH=1 -s PTHREAD_POOL_SIZE_STRICT=0 -s PTHREAD_POOL_SIZE=100 -s DETERMINISTIC=1 --profiling-funcs -g -s USE_PTHREADS=1 --proxy-to-worker -s MODULARIZE=0

Modify the compilation parameters according to the above prompts and compile. The compilation passes, but the following error occurs during access.

Compile parameters:

   QMAKE_LFLAGS += -s FETCH=1 -s STACK_OVERFLOW_CHECK=1 -s ALLOW_MEMORY_GROWTH=1 -s PTHREAD_POOL_SIZE_STRICT=0 -s PTHREAD_POOL_SIZE=100 -s DETERMINISTIC=1 --profiling-funcs -g -s USE_PTHREADS=1 -s PROXY_TO_PTHREAD=1 -s MODULARIZE=0