BlackBerry 10 browser compliant with Ringmark Ring 1 benchmark
Ringmark is a standard developed by Facebook.
The tests measure various features and segments them into tiers, or rings. Ring 1 (the second tier, Ring 0 is the first) provides developers with the information they need to lay the foundation of their apps which then enables them to begin incorporating more advanced features in the HTML5 environment. The next step is Ring 2 (the third tier) which is all but a certainty since the BlackBerry 10 browser is actually built in HTML5 completely. Check out the source link below if you want to see how your mobile browser holds up.
source: BlackBerry Developer Blog, you can test your mobile browser here: http://rng.io
Things that are NOT allowed: