Uncaught TypeError: Map is not a constructor

[matfish2]

Uncaught TypeError: Map is not a constructor
    at Object.13 (backend.js:1)
    at t (backend.js:1)
    at Object.101 (backend.js:1)
    at t (backend.js:1)
    at 101 (backend.js:1)
    at backend.js:1
13 @ backend.js:1
t @ backend.js:1
101 @ backend.js:1
t @ backend.js:1
101 @ backend.js:1
(anonymous) @ backend.js:1

The error emanates from this line:

C=window.__VUE_DEVTOOLS_INSTANCE_MAP__=new Map

Using Chrome's most recent version (56.0.2924.87)

[posva]

Map is supported on Chrome 56 so it looks like you're not using Chrome but something else disguised as Chrome 😕

[matfish2]

My bad, I had an object named Map, overriding the original.