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newyankeecodeshop/browser-support.js

Created November 15, 2016 16:57
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Browser detection for ES6 support
Raw
browser-support.js
/**
* Detect browser capabilities on the server.
*/
var useragent = require('useragent')
var MinimumForES6 = {
"Chrome": 49,
"Edge": 14,
"Firefox": 45,
"Safari": 10
}
function supportsES6(headers) {
var agent = useragent.lookup(headers['user-agent'])
var requiredVersion = MinimumForES6[agent.family]
if (requiredVersion) {
return parseInt(agent.major) >= requiredVersion
}
return false
}
exports.supportsES6 = supportsES6
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