IE11: Cannot open a dialog from inside a dialog

[mortenamby]

Bug, feature request, or proposal:

Bug

What is the expected behavior?

Opening a new dialog from within a dialog should work in Internet Explorer 11.

What is the current behavior?

When opening a dialog from within another dialog, the new dialog is not displayed.

What are the steps to reproduce?

1. Open a dialog instance.
2. From inside this instance, try to open another different dialog (without closing the first one).
3. In IE11 nothing happens.

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

It may be desirable to open a new modal from an existing one, and it works for Chrome so there's no reason it shouldn't work for IE too

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

Currently running:
@angular/material: 2.0.0-beta.10
@angular/core: 4.2.4
@angular/cdk 2.0.0-beta.10

Is there anything else we should know?

I'd provide a plunker but since plunker is not affected by what browser you're using it is irrelevant. Instead it can be tested with a quick sample through the CLI.

[donroyco]

You didn't see #7004?

[crisbeto]

Closing as a duplicate of #6719.

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