Mediawiki RSS Extension not showing images

I have installed Extension:RSS and followed the instructions given to display images from feeds.

The same problem is being discussed on the Extension:RSS Talk page here:

https://www.mediawiki.org/wiki/Topic:Scs77xou1rjfq8di

I installed the Extension:RSS as instructed here:

https://www.mediawiki.org/wiki/Extension:RSS

I added to LocalSettings.php:

$wgRSSAllowLinkTag = true;$wgRSSAllowImageTag = true;$wgAllowExternalImages = true;

I commented out the lines of code in RSSparser.php as specified here:

If you allow to see images in feed items. Do not confuse this parameter with $wgAllowImageTag of MediaWiki core, Display of images causes privacy problems, because the image is fetched in the browser context, so the (image-) server log will contain data of the requesting browser, see the discussion here. Note that since 2013 due to the MediaWiki sanitizer, image tags which have the form <img src="blah"/> are not parsed correctly by the MediaWiki core sanitizer and are not displayed irrespective of this setting (see task T48443).If you want the image to show, set this to true in LocalSettings.php and in \extensions\RSS\RSSParser.php remove this part at lines 485if ( isset( $wgRSSAllowImageTag ) && $wgRSSAllowImageTag ) {            $extraInclude[] = "img";        } else {            $extraExclude[] = "img";        }

I validated the rss file here:

https://codebeautify.org/xmlvalidator

with the rss feed I want to import:

https://archaix.wiki/data/RSS_Test.rss

The Mediawiki page where I am testing the rss import is here:

https://archaix.wiki/index.php/RSS_Test

I believe it is Mediawiki's Santizer that is still stripping out the images, but I thought the instructions above addressed that issue.

Still, images do not show on the page:

https://archaix.wiki/index.php/RSS_Test

Would anyone have a suggestion as to what else I should try?

Thanks very much for any pointers!