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The source of the documentation site is a good example of it being used:

Nice and clean.

That being said I've never used web components and haven't really planned on. Not sure what their status has been in terms of adoption.

> Not sure what their status has been in terms of adoption.

Chrome teams and WC proponents will have you believe the adoption is huge, in the tens of percents of webviews. Of which most are Google's Youtube...

There have also been high profile adoptions at GitHub and Salesforce.

Beyond that, they have an issue list as long as my hand (and busy adding new issues), and can't really be used without a library/framework. So...

I wouldn't call flash-of-uncompiled-markup nice and clean. Please pre-render your markup.

While I think you can compile your markdown in most cases, this is a two line fix: set the style to display: none and remove it after compiling.