DOCS - Card Example not working

[marc-wilson]

Bug, feature request, or proposal: Bug

What is the expected behavior? Working card example in docs

What is the current behavior? Card example is broken; styles aren't being applied

What are the steps to reproduce?

Providing a StackBlitz/Plunker (or similar) is the best way to get the team to see your issue.

Plunker starter (using on @master): https://goo.gl/DlHd6U

StackBlitz starter (using latest npm release): https://goo.gl/wwnhMV

1.) Navigate to https://material.angular.io/components/card/examples
2.) Observe Card Example not rendering correctly

What is the use-case or motivation for changing an existing behavior? Better quality in docs

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

Is there anything else we should know?

[donroyco]

That's because the images are loaded over HTTP, not HTTPS.

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