1. ErrorEvent {isTrusted: true, message: 'Uncaught SyntaxError: Unexpected end of input', filename: 'http://localhost:7456/', lineno: 1, colno: 4, …}
1. isTrusted: true
2. bubbles: false
3. cancelBubble: false
4. cancelable: true
5. colno: 4
6. composed: false
7. currentTarget: Window {window: Window, self: Window, document: document, name: '', location: Location, …}
8. defaultPrevented: true
9. error: SyntaxError: Unexpected end of input
10. eventPhase: 0
11. filename: "http://localhost:7456/"
12. lineno: 1
13. message: "Uncaught SyntaxError: Unexpected end of input"
14. path: [Window]
15. returnValue: false
16. srcElement: Window {window: Window, self: Window, document: document, name: '', location: Location, …}
17. target: Window {window: Window, self: Window, document: document, name: '', location: Location, …}
18. timeStamp: 87911.60000002384
19. type: "error"
20. [[Prototype]]: ErrorEvent
更新了新版本的浏览器，web调试时经常会出现报错。按下面方法可以去掉报错。
