Gets an object containing normalized stacktrace information across browsers. If you want to programmatically inspect the stack, this is the module for you. This uses stacktrace.js to get stack traces. stackinfo([<exception>]) - returns stack trace information in the below format. If <exception> is passed, the stacktrace will be taken from that exception, otherwise a stacktrace will be generated for the current call. Passed exceptions doesn't work in IE or Safari 5 (this is a limitation of stacktrace.js).