Math.random() javascript function *undefined* on Chrome

Question

In first place, I am convinced that this is a trivial question, but I cannot understand why this is happening and I couldn\'t find an answer anywhere else. I googled my issu

Answer 1

Something overrides Math in your code.

Execute Math in your chrome console. Execute context menu on it and select "Show function definition". This will probably lead you to "Sources" panel and show script where it is being overriden.

EDIT: this is chrome extension called notscripts. Disable it. Here is the source code for proof: webarchive