Provide useful upgrading & debugging information to users with WebGL disabled or unavailable.
Parameters
userAgentString
string the contents of navigator.userAgent
Examples
var webglHelp = require('webgl-help');
// get link for troubleshooting
var links = webglHelp(navigator.userAgent);
if (links) {
// add links.troubleshooting url
}
Returns Object upgrade & troubleshooting urls (or null if not found)