问题
I am working on desktopCapture API of google chrome webrtc. When I run the application I am getting error "Cannot read property 'chooseDesktopMedia' of undefined". Means browser is not able to find the chrome.desktopCapture inside chrome browser.
My chrome browser version is 38.
回答1:
Yep, access to the desktopCapture API is disabled by default. You either need to write an extension or modify the browsers internal flags.
I wrote such an example extension which might be helpful.
来源：https://stackoverflow.com/questions/28018571/cannot-read-property-choosedesktopmedia-of-undefined