How to preserve HTML from posts in RSS feed
I have set up a sample post with a few different HTML tags. This is the markup, copied from the block editor:
!-- wp:columns --
div class=wp-block-columns!-- wp:column --
div class=wp-block-column!-- wp:paragraph --
pThis is paragraph 1./p
!-- /wp:paragraph --
!-- wp:paragraph --
pIn a new paragraph, we begin an unordered list:/p
!-- /wp:paragraph --
!-- wp:list --
ullilist item 1/lililist item 2/lililist item 3/li/ul
!-- /wp:list --
!-- wp:image {id:418,sizeSlug:full,linkDestination:none} --
figure class=wp-block-image size-fullimg src=https://domain.tld/wp-content/uploads/2018/11/logo.png alt= class=wp-image-418/figcaptionorganization logo/figcaption/figure
!-- /wp:image --
!-- wp:html --
Begin custom HTML
brhra href=#link trial/abr
divpThis is a paragraph in a div/div
!-- /wp:html --
!-- wp:paragraph --
pEach/p
!-- /wp:paragraph --
!-- wp:paragraph --
pof/p
!-- /wp:paragraph --
!-- wp:paragraph --
pthese/p
!-- /wp:paragraph --
!-- wp:paragraph --
pwords/p
!-- /wp:paragraph --
!-- wp:paragraph --
pis/p
!-- /wp:paragraph --
!-- wp:paragraph --
pa/p
!-- /wp:paragraph --
!-- wp:paragraph --
pparagraph/p
!-- /wp:paragraph --/div
!-- /wp:column --/div
!-- /wp:columns --
Checking on my feed, it shows description and content:encoded elements like the following:
description![CDATA[This is an excerpt]]/description
content:encoded![CDATA[pThis is paragraph 1. In a new paragraph, we begin an unordered list: list item 1 list item 2 list item 3 Begin custom HTML link trial This is a paragraph in a div Each of these words is a paragraph.../p
pa href=https://domain.tld/sample/ rel=nofollowSource/a/p]]/content:encoded
Obviously some mechanism is stripping all the HTML and wrapping the plaintext of the post in a single p - but I'm struggling to find what it is.
I placed a print_debug_backtrace() at the top of feed-rss2.php and got the following:
#0 require_once() called at [/home1/foo/public_html/wp-includes/template.php:770]
#1 load_template(/home1/foo/public_html/wp-includes/feed-rss2.php) called at [/home1/foo/public_html/wp-includes/functions.php:1623]
#2 do_feed_rss2() called at [/home1/foo/public_html/wp-includes/class-wp-hook.php:305]
#3 WP_Hook-apply_filters(, Array ([0] = ,[1] = rss2)) called at [/home1/foo/public_html/wp-includes/class-wp-hook.php:327]
#4 WP_Hook-do_action(Array ([0] = ,[1] = rss2)) called at [/home1/foo/public_html/wp-includes/plugin.php:470]
#5 do_action(do_feed_rss2, , rss2) called at [/home1/foo/public_html/wp-includes/functions.php:1585]
#6 do_feed() called at [/home1/foo/public_html/wp-includes/template-loader.php:48]
#7 require_once(/home1/foo/public_html/wp-includes/template-loader.php) called at [/home1/foo/public_html/wp-blog-header.php:19]
#8 require(/home1/foo/public_html/wp-blog-header.php) called at [/home1/foo/public_html/index.php:17]
I have also set up a custom debug page and stepped through what I observed as the call stack of the content:encoded element. Those tests all came back with the desired HTML and none of the WP content comments.
Appreciate any help you all can send my way
Addendum: The end goal here is to enable MailChimp's RSS merge to pick up these posts and send them, collectively, in a periodic email without the need to duplicate efforts. I'm aware of the limitations of HTML in email, all posts will be extremely simple markup but I want at least to have paragraph breaks.
I'm pretty sure my use case obviates using the API.
With the markup being wrapped in CDATA I don't expect to run afoul of RSS validation.
.