[wp-trac] [WordPress Trac] #64449: Block support: Add server-side processing for anchor

[WordPress Trac]

#64449: Block support:  Add server-side processing for anchor
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 Reporter:  wildworks        |       Owner:  (none)
     Type:  enhancement      |      Status:  new
 Priority:  normal           |   Milestone:  7.0
Component:  Editor           |     Version:
 Severity:  normal           |  Resolution:
 Keywords:  gutenberg-merge  |     Focuses:
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Changes (by wildworks):

 * keywords:  gutenberg-merge has-patch has-unit-tests => gutenberg-merge


Comment:

 === Testing instructions

 WordPress core does not yet have any dynamic blocks that support anchors,
 so run the following code to add `anchor` support to the Archive block:

 {{{
 #!php
 add_filter( 'register_block_type_args', function( $args, $block_name ) {
         if ( 'core/archives' === $block_name ) {
                 $args['supports']['anchor'] = true;
         }
         return $args;
 }, 10, 2 );
 }}}

 - Open a post.
 - Switch to Code Editor mode and enter the following HTML:
   `<!-- wp:archives {"anchor":"my-anchor"} /-->`
 - Save the post.
 - On the frontend, the Archive block should have an ID attribute.

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Ticket URL: <https://core.trac.wordpress.org/ticket/64449#comment:2>
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