Fortify scan finds Insecure Randomness vulnerability in jszip.js, line 11488

[dianesun]

Abstract: The random number generator implemented by random() cannot withstand a
cryptographic attack.
Sink: jszip.js:11488 FunctionPointerCall: random()
11486 // * http://www.whatwg.org/specs/web-apps/currentwork/multipage/comms.html#crossDocumentMessages
11487
11488 var messagePrefix = "setImmediate$" + Math.random() + "$";
11489 var onGlobalMessage = function (event) {
11490 if (event.source === global &&