[Violation] Long running JavaScript task took 226ms in Chrome

There's a violation warning caused by `material.min.js`


> What MDL Version are you using? (please be specific, e.g. _major.minor.patch_)

1.3.0

> What browser(s) is this bug affecting (including version)?

Chrome 56

> What OS (and version) are you using?

macOS Sierra

> What are the steps to reproduce the bug? Can you create a plunker/codepen/jsfiddle which reproduces it?

Adding the script tag to `index.html` results in a violation warning in Chrome

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> What is the expected behavior?

No violation warning

> What is the actual behavior?

Shows violation warning