modernizr
Version:
Modernizr is a JavaScript library that detects HTML5 and CSS3 features in the user’s browser.
31 lines (27 loc) • 788 B
JavaScript
/*!
{
"name": "Binary WebSockets",
"property": "websocketsbinary",
"tags": ["websockets"],
"builderAliases": ["websockets_binary"]
}
!*/
define(['Modernizr'], function(Modernizr) {
// binaryType is truthy if there is support.. returns "blob" in new-ish chrome.
// plus.google.com/115535723976198353696/posts/ERN6zYozENV
// github.com/Modernizr/Modernizr/issues/370
Modernizr.addTest('websocketsbinary', function() {
var protocol = 'https:' == location.protocol ? 'wss' : 'ws',
protoBin;
if ('WebSocket' in window) {
protoBin = 'binaryType' in WebSocket.prototype
if (protoBin) {
return protoBin;
}
try {
return !!(new WebSocket(protocol + '://.').binaryType);
} catch (e) {}
}
return false;
});
});