Here is a very informative article about this issue,and there is a link to a test page as well. Chrome,Firefox,and Opera are safe browsers,and perhaps Opera mini too if you have low memory. There are a number of oem's that have patched jellybeen,and if you load another browser too, to test besides the native browser,you should find out if the fix was global on your device. Make sure the othher test browser uses webkit/webview.