pipe: number pipe does not work on mobile browsers

Simply add anywhere in template the following:

`{{123456 | number}}`
or
`{{123456 | number:'4.2-2'}}`

In desktop browsers (Firefox, Chrome, IE10) the value is correctly interpolated as:

```
123,456
```

or

```
123,456.00
```

but on mobile browsers on iPad iOS 9.2.1 (Chrome 47, Safari, Firefox 2.0) it fails resulting in empty value.
