When accessing a webpage that will access the WebMIDI APIs it will fail due to the fact that QWebEnginePage does not grant permission to use it

When accessing a webpage that will access the WebMIDI APIs it will fail due to the fact that QWebEnginePage does not grant permission to use it. This is because Qt has no support for this feature on the permissions level. If you try to access it then it will output:

[93655:775:0909/095102.236061:ERROR:permission_manager_qt.cpp(82)] Not implemented reached in ProfileAdapter::PermissionType QtWebEngineCore::toQt(content::PermissionType)Unsupported permission type: 6