Hi there! I like the onebox for previewing URLs in Discourse. It looks great: 01.18.2018-14.18.14 - TechSmith Screencast However, the onebox looks -not as nice- (or horrible) in Wordpress comments below the post: 01.18.2018-14.19.00 - TechSmith Screencast Is it possible to disable onebox (and just show bare URLs) in the Wordpress comments section?

The problem with Discourse oneboxes displayed in WordPress comments is that the Discourse onebox styles aren’t set WordPress. All of the Discourse onebox markup is present in the WordPress comment, so it’s possible to add the Discourse onebox styles to your WordPress site. You can hide the body of the onebox with the following CSS on your WordPress site. This will just leave the onebox header - a link to the original article. .comment-content .onebox .onebox-body { display: none; }

Hi @simon Thanks for your reply and your help. I managed to clean up the onebox styling a bit with your suggested CSS (01.29.2018-14.27.06 - TechSmith Screencast), but there is still some undesired HTML being parsed, like an H3 header. Does the Discourse Wordpress plugin offer any hooks so I can overwrite the HTML output? Or perhaps this is a great suggestion to improve the Discourse Wordpress plugin? Looking forward to your reply. Thanks! .comment-content .onebox .aspect-image, .comment-content .onebox .source, .comment-content .onebox p { display: none; }

[image] erikmolenaarnl: Does the Discourse Wordpress plugin offer any hooks so I can overwrite the HTML output? No, but it should. I’ll add a filter the the comment content before it gets added to the comment_html template.

Hi @simon Thanks for your reply and help. Any ETA on this plugin update? Looking forward to your reply. Thanks again for your help.

I’ll add it to the code right now. It will be in the next update. That’s going to happen sometime this week. Edit: the filter will be named wpdc_comment_body. $comment_body = wp_kses_post( apply_filters( 'wpdc_comment_body', $comment_body ) );

Hi @simon Thanks for adding this filter to the WP plugin! Much appreciated! Could you give me a PHP example code how to utilize this filter? Thanks again!

Something like this should work to remove oneboxes from comments. It’s assuming that the libxml extension is loaded on your server. (It probably is.) add_filter( 'wpdc_comment_body', 'wpdc_custom_comment_body' ); function wpdc_custom_comment_body( $content ) { // Allows parsing misformed html. Save the previous value of libxml_use_internal_errors so that it can be restored. $use_internal_errors = libxml_use_internal_errors( true ); $doc = new \DOMDocument( '1.0', 'utf-8' ); $doc->loadHTML( mb_convert_encoding( $content, 'HTML-ENTITIES', 'UTF-8' ) ); $finder = new \DOMXPath( $doc ); $oneboxes = $finder->query( "//*[contains(@class, 'onebox')]"); foreach( $oneboxes as $onebox ) { $onebox->parentNode->removeChild( $onebox ); } // Clear the libxml error buffer. libxml_clear_errors(); // Restore the previous value of libxml_use_internal_errors. libxml_use_internal_errors( $use_internal_errors ); $parsed = $doc->saveHTML( $doc->documentElement ); // Remove DOCTYPE, html, and body tags that have been added to the DOMDocument. $parsed = preg_replace( '~ ]*>\s*~i', '', $parsed ); return $parsed; } The Discourse plugin uses DOMDocument to fix relative links that are returned from Discourse. That code is here: https://github.com/discourse/wp-discourse/blob/master/templates/template-functions.php#L71

Hi @simon If I use your code, the entire URL is removed and there is no output at all. Check out: 02.21.2018-13.52.37 - TechSmith Screencast I think there is is an error in your code, but I can’t find out what it is. Looking forward to your reply. Thanks a bunch! P.s. why not remove the onebox output natively from the WP Discourse plugin alltogether below WP Posts? That it just returns the URL as a default without using this code? I think it would be the easiest option to prevent corrupt looking oneboxes all together for all users out there?

Yes, that code will remove the entire onebox. It would be possible to use a similar idea to just extract the URL. I’m not sure what the plugin should be doing with oneboxes. Maybe this is a case where it should be including some default CSS so that oneboxes look similar to how the look on Discourse?

Hi @simon I think the easiest option would be the best: to output just the link URL in text. There are so many themes and styles around that a specific style would always cause problems.

Onebox looks horrible on Discourse Comments (below WP Post)

Product Support WordPress

ThomasLewis February 23, 2018, 6:36pm 12

I agree here. Oneboxing in WP comments seems overkill and, like Erik said, there are too many variables to make the OneBox look good on any WP blog.

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Onebox looks horrible on Discourse Comments (below WP Post)

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