ionic——使用webrtc开发可视对讲的一些问题

1、
错误信息：window.RTCPeerConnection is not a constructor
错误信息：sendto() has failed twice returning a transient error net::ERR_ADDRESS_UNREACHABLE. Dropping the packet.
错误信息：Failed to execute 'addIceCandidate' on 'RTCPeerConnection': The 1st argument
改为：
var PeerConnection = window.mozRTCPeerConnection || window.webkitRTCPeerConnection; pc = new PeerConnection(iceServer);
2、
错误信息：
[Deprecation] getUserMedia() no longer works on insecure origins. To use this feature, you should consider switching your application to a secure origin, such as HTTPS. See https://goo.gl/rStTGz for more details.
改为：
ionic serve --address 127.0.0.1
chrome浏览器认为安全的地址：127.0.0.1，localhost,https开头的地址
3、
手机上测试，需要有使用相机、麦克风权限；
错误信息："Uncaught TypeError: Cannot read property 'then' of undefined"
以下插件：
android-camera-permission
cordova-plugin-media
cordova-plugin-media-capture
cordova-plugin-android-permissions
cordova-plugin-crosswalk-webview

待续。。。。