Embed Block: AMP Compatibility Workaround

[swissspidy]

Feature Description

The <amp-story-player> component is not yet AMP compatible, which is why for example the AMP plugin is removing it from the page when using Standard mode.

To work around this for the time being, the idea is to use <amp-iframe> instead.

Basically, instead of using <amp-story-player> directly we would use <amp-iframe> to embed a document that contains nothing but the player.

The crux is creating such a document in a secure way, i.e. it should probably only allow loading the player with the block's actual attributes, and not just any arbitrary data.

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Acceptance Criteria

Implementation Brief

[swissspidy]

Looks like this will have mostly resolved itself now that the player works in AMP. We just need to wait for the AMP plugin 2.0 release, see ampproject/amp-wp#5075