diff --git a/html5/verto/demo/js/verto-min.js b/html5/verto/demo/js/verto-min.js
index de30e2084f..109a9b3282 100644
--- a/html5/verto/demo/js/verto-min.js
+++ b/html5/verto/demo/js/verto-min.js
@@ -78,7 +78,7 @@ $.FSRTC.bestResSupported=function(){var w=0,h=0;for(var i in $.FSRTC.validRes){i
 return[w,h];}
 var resList=[[320,180],[320,240],[640,360],[640,480],[1280,720],[1920,1080]];var resI=0;var checkRes=function(cam,func){if(resI>=resList.length){if(func)return func();return;}
 var video={mandatory:{},optional:[]}
-if(cam){video.optional=[{sourceId:obj.options.useCamera}];}
+if(cam){video.optional=[{sourceId:cam}];}
 w=resList[resI][0];h=resList[resI][1];resI++;video.mandatory={"minWidth":w,"minHeight":h,"maxWidth":w,"maxHeight":h};getUserMedia({constraints:{audio:false,video:video},onsuccess:function(e){e.stop();console.info(w+"x"+h+" supported.");$.FSRTC.validRes.push([w,h]);checkRes(cam,func);},onerror:function(e){console.error(w+"x"+h+" not supported.");checkRes(cam,func);}});}
 $.FSRTC.getValidRes=function(cam,func){var used=[];$.FSRTC.validRes=[];resI=0;checkRes(cam,func);}
 $.FSRTC.checkPerms=function(){getUserMedia({constraints:{audio:true,video:true,},onsuccess:function(e){e.stop();console.info("media perm init complete");},onerror:function(e){console.error("media perm init error");}});}})(jQuery);(function($){$.JsonRpcClient=function(options){var self=this;this.options=$.extend({ajaxUrl:null,socketUrl:null,onmessage:null,login:null,passwd:null,sessid:null,loginParams:null,userVariables:null,getSocket:function(onmessage_cb){return self._getSocket(onmessage_cb);}},options);self.ws_cnt=0;this.wsOnMessage=function(event){self._wsOnMessage(event);};};$.JsonRpcClient.prototype._ws_socket=null;$.JsonRpcClient.prototype._ws_callbacks={};$.JsonRpcClient.prototype._current_id=1;$.JsonRpcClient.prototype.call=function(method,params,success_cb,error_cb){if(!params){params={};}
diff --git a/html5/verto/js/src/jquery.FSRTC.js b/html5/verto/js/src/jquery.FSRTC.js
index e65f32ea70..6baf7aa54c 100644
--- a/html5/verto/js/src/jquery.FSRTC.js
+++ b/html5/verto/js/src/jquery.FSRTC.js
@@ -982,7 +982,7 @@
         }	
 
 	if (cam) {
-	    video.optional = [{sourceId: obj.options.useCamera}];
+	    video.optional = [{sourceId: cam}];
 	}
 	
 	w = resList[resI][0];
diff --git a/html5/verto/video_demo/js/verto-min.js b/html5/verto/video_demo/js/verto-min.js
index de30e2084f..109a9b3282 100644
--- a/html5/verto/video_demo/js/verto-min.js
+++ b/html5/verto/video_demo/js/verto-min.js
@@ -78,7 +78,7 @@ $.FSRTC.bestResSupported=function(){var w=0,h=0;for(var i in $.FSRTC.validRes){i
 return[w,h];}
 var resList=[[320,180],[320,240],[640,360],[640,480],[1280,720],[1920,1080]];var resI=0;var checkRes=function(cam,func){if(resI>=resList.length){if(func)return func();return;}
 var video={mandatory:{},optional:[]}
-if(cam){video.optional=[{sourceId:obj.options.useCamera}];}
+if(cam){video.optional=[{sourceId:cam}];}
 w=resList[resI][0];h=resList[resI][1];resI++;video.mandatory={"minWidth":w,"minHeight":h,"maxWidth":w,"maxHeight":h};getUserMedia({constraints:{audio:false,video:video},onsuccess:function(e){e.stop();console.info(w+"x"+h+" supported.");$.FSRTC.validRes.push([w,h]);checkRes(cam,func);},onerror:function(e){console.error(w+"x"+h+" not supported.");checkRes(cam,func);}});}
 $.FSRTC.getValidRes=function(cam,func){var used=[];$.FSRTC.validRes=[];resI=0;checkRes(cam,func);}
 $.FSRTC.checkPerms=function(){getUserMedia({constraints:{audio:true,video:true,},onsuccess:function(e){e.stop();console.info("media perm init complete");},onerror:function(e){console.error("media perm init error");}});}})(jQuery);(function($){$.JsonRpcClient=function(options){var self=this;this.options=$.extend({ajaxUrl:null,socketUrl:null,onmessage:null,login:null,passwd:null,sessid:null,loginParams:null,userVariables:null,getSocket:function(onmessage_cb){return self._getSocket(onmessage_cb);}},options);self.ws_cnt=0;this.wsOnMessage=function(event){self._wsOnMessage(event);};};$.JsonRpcClient.prototype._ws_socket=null;$.JsonRpcClient.prototype._ws_callbacks={};$.JsonRpcClient.prototype._current_id=1;$.JsonRpcClient.prototype.call=function(method,params,success_cb,error_cb){if(!params){params={};}