Non-text nodes have some focus/visibility issues.

[FrenjaminBanklin]

This is happening with YouTube and IFrame nodes, but it's possible this could be a problem for multiple other node types that lack any kind of text component.

The immediately apparent issue:

• If the first node on a page is a YouTube/IFrame node, that node will steal focus from any text node that is clicked anywhere below it on the page.
  • Example: First node on a page is a YouTube/IFrame node, next node on the page is a Text node. Click the Text node, the YouTube/IFrame node will steal focus.
  • Another example: First node on a page it a YouTube/IFrame node, second node on the page is a Text node, third node is a YouTube/IFrame, fourth node is a Text node. Click on the second node (Text), the first YouTube node steals focus. Click on the fourth node (Text), the first YouTube/IFrame node steals focus. Click the third node (YouTube/IFrame), and you can interact with it properly. Clicking in either of the page's margins will move focus immediately to the first YouTube/IFrame node.

Additionally, in YouTube nodes, once a video is added, the 'Edit' button is not reachable unless the YouTube node loses focus somehow (clicking outside of the node, for example).

It looks like using the up/down arrow keys to navigate page contents skips over YouTube nodes, but the left/right arrow keys can be used to move into YouTube nodes properly. Using the arrow keys to move down from a YouTube node into a Text node seems to be working properly. IFrame nodes seem to be reachable with the up/down arrow keys just fine.

These problems seem to disappear when a text-containing node is present in the page at any point before all YouTube/IFrame nodes.