[MdTextareaAutosize] - server side rendering crash

[jimjim2a]

Bug, feature request, or proposal:

Using MdTextareaAutosize directive make server side app crash at startup.

It crashes because when the ngAfterViewInit hook is called, some calculation based on the nativeElement are done.

What is the expected behavior?

If we are running on a server we should do nothing when the directive initializes itself, because all the calculation depends on an element already inserted into the DOM.

What is the current behavior?

The directive initializes itself, tries to autosize the textarea using some nativeElement methods and makes the app crash.

What are the steps to reproduce?

What is the use-case or motivation for changing an existing behavior?

Which versions of Angular, Material, OS, TypeScript, browsers are affected?

Angular 4.3.1
Material 2.0 beta 8
Typescript 2.3.3

Is there anything else we should know?

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