simpledemo dont work in iphone5s,ios7.1.2,the warning is cannot inject custom Javascript

[Jackie2016]

hi,i test simpledemo which dont work in iphone5s,ios7.1.2.my host is os x 10.11 and xcode7.1,when i run simpledemo on iphone5 ,the xcode output shows "warning:cannot inject custom Javascript" and no errors.but the iphone5 cant see the www.openwebrtc.org page. when i run simpledemo on iphone5 simulator ,it is ok. what is wrong with me?could anyone light me?it will be appreciated. thanks