The value of the Navigator.vendorSub property is always the empty string, in any browser.


venSub = window.navigator.vendorSub 


  • The empty string


Specification Status Comment
HTML Living Standard
The definition of 'NavigatorID: vendorSub' in that specification.
Living Standard Initial definition

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Basic support
Chrome Full support YesEdge ? Firefox Full support YesIE Full support YesOpera Full support 15Safari Full support YesWebView Android Full support YesChrome Android Full support YesEdge Mobile ? Firefox Android Full support YesOpera Android Full support 15Safari iOS Full support YesSamsung Internet Android ?


Full support  
Full support
Compatibility unknown  
Compatibility unknown
Non-standard. Expect poor cross-browser support.
Non-standard. Expect poor cross-browser support.

Document Tags and Contributors

Last updated by: sideshowbarker,