On a new forum I am administering I tried posting a sentence or two together with a link that I hoped would create a OneBox popout. But it didn’t appear. Tried a couple of times with a couple of different links. Both show popups just fine when I put them in iframely. Any troubleshooting list I can go through? Here’s one of the links, on its own line with no space like in the posts I made on the site:
AI-generated summary
A user, sronan, is experiencing issues with OneBox not appearing on their forum when posting links. Despite enabling flash video onebox and inline onebox on all domains, the previews do not show. simon suggests that the issue may be due to the site being hosted by WP Engine, which blocks requests from unfamiliar user-agents, including Discourse oneboxes. This is confirmed to be the case for the site https://foe.org/. simon further investigates and finds that the site https://goodfoodcities.org/ is not hosted by WP Engine, but the Discourse Forum Onebox user-agent is still being blocked, resulting in a 404 Not Found error. To check if a site is hosted on WP Engine, simon recommends viewing the page source and searching for ‘wpengine’.
And this link was used in the other failed attempt:
https://foe.org/news/friends-earth-applauds-d-c-council-increasing-healthy-sustainable-food-options-schools/
After posting both messages I went to settings for OneBox and put a checkbox next to both of these options:
enable flash video onebox
enable inline onebox on all domains
But still no preview.
The site at https://foe.org/ is hosted by WP Engine. WP Engine blocks requests from user-agents that they are not familiar with. This prevents Discourse oneboxes from displaying for many WP Engine hosted sites.
This has come up a few times in the past. The way to get it resolved is for the owners of the WP Engine hosted site to contact WP Engine and ask them to allow the Discourse Forum Onebox User Agent. If you are an owner of https://foe.org/ it would be great if you could contact WP Engine and ask them to do this.
Thanks! Would that also be true of the other site at goodfoodcities.org? How can I can I tell if a site is hosted by WP engine?
The site at goodfoodcities.org doesn’t appear to be hosted by WP Engine. The meta data required for creating a onebox exists on that site, but when I try to create one on a live site, the request to the website is returning 404 Not Found. On my local dev site, oneboxes for goodfoodcities.org are created without a problem. This suggests that the problem is that the Discourse Forum Onebox user-agent is being blocked.
To check if a site is hosted on WP Engine, I view the source of the page and search for ‘wpengine’.