My web apps is using/starting external JS files for generating common headers/footers. So I don't know these scripts fully. But now I see strange errors which seems to be not connected with my code:
VM517:1 Uncaught ReferenceError: XXX_initCore is not defined
at <anonymous>:1:1
(anonymous) @ VM517:1
How to find where is the problem?
Where is the source of the problem?
UPDATE 1: Generally error appears when application my MVC5 application is started locally. When I open Developer Tools => Network => XHRs; some JS codes are listed, Im analyzing this.