I have been trying to create a custom tab on a Facebook Page where it shows the content from a website. There are a couple I may be creating, however I encountered an issue with the first one, the way I have tried to achieve this is within the Facebook for Developers website I created an app, filled in the fields and then at the bottom of the Basic Settings page there is an option to “Add Platform” I selected “Page Tab” and then filled in the fields. The URL is https and I inputted the same URL for the “Secure Page Tab URL” and also “Page Tab Edit URL”. After this I added tab to the Facebook page.
The custom tab shows on the page (on a desktop and not on the mobile app…), but on Chrome it is completely blank with nothing showing, however, in Microsoft Edge it shows 403 Forbidden, nginx/1.15.10. The website was made with Wix and all my browsers, etc is up to date.
I understand that to allow the requests I may have to allow HTTP Post somehow and/or potentially include the likes of x-wix-signature in some way. I have looked at the following links and to be honest I cannot get my head around it and get it to work. I would be grateful if anybody could please help.
Any help will be appreciated, thanks.