Issue: Facebook preview

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February 18, 2015 10:54 AM

hollosch

Senior Member

Facebook preview

I have two pages:

(1) http://geislingen.net/wiki/Asylbewerber_in_Geislingen
(2) http://geislingen.net/wiki/Gemeinsch...ten_Geislingen

Copying the link to facebook - The picture from (1) will be shown as preview - from (2) there is no preview?

Is this a bug ?

Issue Details

Issue Number 4222

Issue Type Bug

Project VaultWiki 4.x Series

Category Social Media

Status Not a Bug

Priority 5 - Minor Bugs / Small Tweaks

Affected Version 4.0.1

Fixed Version (none)

Milestone (none)

Software DependencyAny

License TypePaid

Users able to reproduce bug 0

Users unable to reproduce bug 0

Attachments 0

Assigned Users (none)

Tags (none)

February 18, 2015 11:04 AM

pegasus

VaultWiki Team

No, it's not a bug. VaultWiki doesn't currently offer any specific preview-image information to Facebook or other sites. If sometimes an image appears and sometimes it doesn't, then it has to do with the algorithms that Facebook uses to "find" a preview-image. We don't know what those are exactly, but it might be hindered in your second example because the image is wrapped in B tags. An image isn't text, so it can't be bold. The B tag might cause Facebook to skip its contents (the picture) because it thinks it's not possible for a picture to be inside it.

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February 18, 2015 11:19 AM

hollosch

Senior Member

that's curious...
it's not pretty when sharing a page and the picture is not showing...

The facebook URL-debugger says:

https://developers.facebook.com/tools/debug/

Facebook don't find the image from (2)

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Issue: Facebook preview

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