@ngdoc error
@name $parse:isecwindow
@fullName Referencing Window object in Expression
@description

Occurs when an expression attempts to access a Window object.

AngularJS restricts access to the Window object from within expressions since it's a known way to
execute arbitrary Javascript code.

This check is only performed on object index and function calls in Angular expressions.  These are
places that are harder for the developer to guard.  Dotted member access (such as a.b.c) does not
perform this check - it's up to the developer to not expose such sensitive and powerful objects
directly on the scope chain.

To resolve this error, avoid Window access.

### Common CoffeeScript Issue

Be aware that if you are using CoffeeScript, it automatically returns the value of the last statement in a
function. So for instance

```coffeescript
  scope.foo = ->
    window.open 'https://example.com'
```

compiles to something like

```js
  scope.foo = function() {
    return window.open('https://example.com');
  };
```

You can see that this function will return the result of calling `window.open`, which is a `Window`
object.

You can avoid this by explicitly returning something else from the function:

```coffeescript
  scope.foo = ->
    window.open 'https://example.com'
    return true;
```