Snackbar does not render on mobile Chrome

[pietie]

Bug, feature request, or proposal:

Bug

What is the current behavior?

Snackbar does not render at all

What are the steps to reproduce?

Visit https://material.angular.io/components/component/snack-bar in mobile Chrome and try out the example

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

Material beta 5
Fails in mobile Chrome 58 as well as iOS.

Is there anything else we should know?

Works on mobile FF

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