Issue with Link Redirects & Metadata Previews in SharePoint / Microsoft 365

Hi everyone,

I’m running into a weird issue with external group/invite links when they’re shared through SharePoint / Microsoft 365.

Here’s what happens:

I’ve got a page like this: justgroup.link/online-earning-whatsapp-group-links

When someone clicks a link from that page, it should redirect them into WhatsApp or another app. But sometimes the redirect doesn’t work smoothly — it either stops halfway or doesn’t open the target app.

Also, when the link is shared through SharePoint, the preview (title, description, image) often doesn’t load at all.

I’m wondering if this is caused by:

How Microsoft 365 / SharePoint handles redirects from non-static pages

OG (Open Graph) tags or headers not being read correctly

Some kind of security or link-rewriting filter that blocks redirects to external domains

Has anyone else run into this? And does anyone know the best way to set up metadata / headers so previews show correctly, or make sure the redirect always works?