VM [number] file raises Uncaught SyntaxError: Unexpected identifier

Question

I have Uncaught SyntaxError: Unexpected identifierfrom a file VM3154:1.
The error appears after logging in with the user Parse. I am trying to find a file on my server and I cannot find this file. This file has only one line of code:

[object Object]

Does anyone know what this file is? What is he doing?

Each time I log in using the Parse User function, you get an increment for that number.

My web uses jQuery, AngularJS, Parse, and Bootstrap.

Answer 1

, , . new, function setTimeout, : fooobar.com/questions/1609902/... ( Firefox: fooobar.com/questions/1609910/...)

setTimeout ,

. , JSON , : ['test1,'test2'].

Example.html :

<script>
setTimeout(new function() { document.write('test') },0);
</script>

, VM61:1 ( ) , / Uncaught SyntaxError (. ).

, , , . , , , .

new, !

PS. Internet Explorer 10 ( )

SCRIPT1007: Expected ']'
example.html, line 1 character 9

Firefox 56

SyntaxError: missing ] after element list[Learn More]  example.html:2:8