QT WebAssembly : get EGLContext from QApplication

Numagrobidon

Hi.

I'm currently developping a WebAssembly application with QML and i want to get the EGLContext from it.
I've tried several ways to recover it :

eglGetCurrentContext() 
//Returns EGL_NO_CONTEXT

QOpenGLContext* openglcontext = QOpenGLContext::currentContext();
QEGLNativeContext nctx = qvariant_cast<QEGLNativeContext>(openglcontext->nativeHandle());
EGLContext ctx = nctx.context();
//Returns ctx == EGL_NO_CONTEXT

I'm using QT 5.15.2 and tried both binaries and sources recompilated. I'm sure EGL and OpenGL ES 2.0 (i need this one) are activated.

EGLDisplay display = eglGetDisplay (EGL_DEFAULT_DISPLAY);
eglQueryString((EGLDisplay )display, EGL_VERSION);
//1.4 Emscripten EGL
eglQueryString((EGLDisplay )display, EGL_VENDOR);
//Emscripten
if(openglcontext->openGLModuleType()== QOpenGLContext::OpenGLModuleType::LibGLES) 
//true

I use a QQuickItem to be sure the context has been initialized with connect &QQuickWindow::beforeRendering().
My version of emscripten is 1.39.8 (embedded) and i use Chrome to display the application.

Thanks for your help,
best regards