偶发性的出现这个异常：Uncaught RangeError: Maximum call stack size exceeded
RangeError: Maximum call stack size exceeded
at loadProgress (https://usr/game.js:13524:25)
at Handler.__proto.runWith (https://usr/game.js:727:41)
at loadProgress (https://usr/game.js:13533:14)
at Handler.__proto.runWith (https://usr/game.js:727:41)
at loadProgress (https://usr/game.js:13533:14)
at Handler.__proto.runWith (https://usr/game.js:727:41)
at loadProgress (https://usr/game.js:13533:14)
at Handler.__proto.runWith (https://usr/game.js:727:41)
at loadProgress (https://usr/game.js:13533:14)
at Handler.__proto.runWith (
https://usr/game.js:727:41) 我看了下引擎的源代码，好像没什么问题，但就不知道为什么会抛出这个异常，虽然是偶发的，但也经常出现。
