"Uncaught TypeError: Cannot redefine property: name" on Chrome 41

[raido]

It seems Chrome 41 (possibly other older Chrome versions, or other browsers) do not allow Function.name redefinition via Object.defineProperty.

Offending line:

https://github.com/pzuraq/ember-decorators-polyfill/blob/master/vendor/ember-decorators-polyfill/index.js#L275

Minimal reproduction to drop in dev console on Chrome 41:

function a() {}; Object.defineProperty(a, 'name', { value: 'b' }); a.name;

As it says on MDN: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/name

Note that in non-standard, pre-ES2015 implementations the configurable attribute was false as well.

It seems it would make sense to wrap the Object.defineProperty for name in try catch, as ES2015+ browsers will allow to assign the name and others don't for this anonymous method: https://github.com/pzuraq/ember-decorators-polyfill/blame/master/vendor/ember-decorators-polyfill/index.js#L256

Or drop it all together.