Update on Try Gutenberg blockers

“Try Gutenberg” is an initiative, currently scheduled for WordPress 4.9.8, to drive more usage of the Gutenberg editor plugin. A while back, I left an offhand comment listing issues I saw as blockers (those that caused data transformation that would be hard to recover from at scale). This comment apparently received more attention than I expected it to, so now we’re partially focused on making sure those blockers are resolved.

And have we been fixing blockers! A non-exhaustive list includes:

The two remaining problems that cause me the most hesitation are:

  1. Unexpected content changes toggling Classic editor from Text to Visual to Text – When post content includes blocks (i.e. you’re opening a Gutenberg post in the Classic Editor), TinyMCE can mangle the blocks within the post. The solution is TBD; needs additional research.
  2. Gutenberg breaks “classic” posts w/ shortcodes by carelessly wrapping shortcodes into paragraph tags – This was partially fixed by correctly handling multi-line shortcodes in a block conversion. However, these multi-line shortcodes still end up with paragraph tags around them. The current suggestion to explore is running wpautop() and shortcode_unautop() on the server instead of TinyMCE.

If you’d like to save a point of reference, I have a working GitHub issue documenting these two and some other issues around block conversion, tables, and galleries. Help appreciated!

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