Jerboa forces HTTPS for images (Markwon plugin) because android doesn’t allow to load http due to cleartext. I can disable this for older Android version but not in newer Android. There is a good reason for this as its much less secure. So instead I chose to rewrite http to https for links in markwon
https://developer.android.com/privacy-and-security/risks/cleartext
Actually Jerboa rewrites all http links to https. Originally it was because of cleartext, it wouldn’t load http images. But then I decided all links should be rewritten to http for security. If it might be too troubling I could change this but imo all sites should support https