Webassembly videoplayer

Hello ,I want develop video player in webassembly,and add opencv (face detection).
so at first,I want play your sample code videoPlayerExample in my emscripten environment(ver1.38.11)
compile is OK ,I got HTML,JS,WASM,so I selected HTML from firefox ,but not show anything,why?
I think some library is missing to link

this is console output:
unreachable code after return statement[詳細] videoPlayerExample.js:1:278260
wasm streaming compile failed: TypeError: Response has unsupported MIME type videoPlayerExample.html:166:13
falling back to ArrayBuffer instantiation videoPlayerExample.html:166:13
missing function: _ZNSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcj videoPlayerExample.html:166:13
-1 videoPlayerExample.html:154:13
-1 videoPlayerExample.html:166:13
uncaught exception: abort(-1). Build with -s ASSERTIONS=1 for more info.
unreachable code after return statement[詳細]

this is warning in compile:
warning: unresolved symbol: _ZN15ofURLFileLoaderC1Ev
warning: unresolved symbol: _ZNKSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE5rfindEcj
warning: unresolved symbol: _ZNKSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE7compareEjjPKcj
warning: unresolved symbol: _ZNSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE5eraseEjj
warning: unresolved symbol: _ZNSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcj
warning: unresolved symbol: _ZNSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6__initEPKcjj
warning: unresolved symbol: _ZNSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6appendEPKcj
warning: unresolved symbol: _ZNSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6appendEjc
warning: unresolved symbol: _ZNSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6resizeEjc
warning: unresolved symbol: _ZNSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE7replaceEjjPKcj
warning: unresolved symbol: _ZNSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE7reserveEj
warning: unresolved symbol: _ZNSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE9__grow_byEjjjjjj
warning: unresolved symbol: ZNSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEC1ERKS5_jjRKS4
warning: unresolved symbol: _ZNSt3__213basic_ostreamIcNS_11char_traitsIcEEE5writeEPKci
warning: unresolved symbol: _Znaj
warning: unresolved symbol: _ZnajRKSt9nothrow_t
warning: unresolved symbol: _Znwj
warning: unresolved symbol: _ZnwjRKSt9nothrow_t
warning: asm2wasm adding operands in call from $__ZNSt3__224__put_character_sequ

I’ve just tried this and it’s working fine for me. what version of openframeworks are you using?

I changed emscripten version 1.38.11 ->1.38.9
and now working well .thank you (OF is 0.10.0)