Image hash code in description of forum topic shared on Facebook/Twitter

feature
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image

Image hash codes are appearing in og:description and twitter:description tags.

<meta property="og:description" content="[58C86A72-CC43-4B36-A8C7-2F360BBA228E]  One Tree Hill, Honor Oak   🎉 Welcome to Lewisham  ..." />
<meta name="twitter:description" content="[58C86A72-CC43-4B36-A8C7-2F360BBA228E]  One Tree Hill, Honor Oak   🎉 Welcome to Lewisham ..." />

It’s rare, if ever, that the image caption contains any useful content - most of the time they are lengthy hash codes. If these captions were stripped from the og: tags it would help my social media shares look clearer (I rely on shares to bring people to my forum - they’re an important part of my branding).

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What is the “raw” content of the actual post?

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![58C86A72-CC43-4B36-A8C7-2F360BBA228E|600x330](upload://5p26A2jfTK4qGLBb0ghom3htfTv.jpeg)
<sub>One Tree Hill, Honor Oak</sub>

## :tada: Welcome to Lewisham

- The highest number of [parks and green spaces](http://www.lewisham.gov.uk/inmyarea/openspaces/Pages/default.aspx) of any London borough. 
- London's largest free fireworks [at Blackheath](http://www.lewisham.gov.uk/inmyarea/events/whats-on/fireworks/Pages/default.aspx) each year.

...
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hmmm but why not call the image something sane like: image instead of 58C86A72-CC43-4B36-A8C7-2F360BBA228E ?

when I just pasted an image in I got!

![image|469x439](upload://1f0cKSsDiZiQCRtV1RC08N1OIeA.png)
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I uploaded the image on my phone. I wouldn’t expect any member of my forum to a) know how to or b) care enough to edit the following:

![58C86A72-CC43-4B36-A8C7-2F360BBA228E|600x330](upload://5p26A2jfTK4qGLBb0ghom3htfTv.jpeg)

…into

![image](upload://5p26A2jfTK4qGLBb0ghom3htfTv.jpeg)

What’s more, I wouldn’t want [image] appearing in my social shares, either. Or anything that appears in square brackets.

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Let me upload an image from my phone

3BD97A0E-AAC6-4503-8BFC-C5A2579F54A9
3BD97A0E-AAC6-4503-8BFC-C5A2579F54A9.jpeg2138Ă—2851 2.35 MB

Yep I see the guid in there @sam

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Well maybe we should improve that specifically for giant guids, add better handling for file names uploaded from mobile

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Yes we should handle this guid case for mobile, @gerhard can you add this to your list? I assume all iOS devices will benefit from better behavior here.

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Should we remove the [image] tags from the excerpt used in og:description and twitter:description or is replacing the GUID in images uploaded from iOS enough?

Showing the alt text of images in those descriptions feels like a bad idea most of the time, but I guess there are some usecases where it makes sense to include them.

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I’d like for the [image] tags to be removed from excerpts, yes (others may, of course, disagree)

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OK, the first part is now merged: https://github.com/discourse/discourse/commit/41e70c410c39f5b29c9e67481a4251aeab891b1e

I’m waiting on feedback for
https://github.com/discourse/discourse/pull/5377

@codinghorror Do we want to try this out?

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Probably fine, go for it and see what people think.

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@ChrisBeach There shouldn’t be any image tags in the descriptions anymore when you share a topic on Twitter and Facebook. All you need to do is update to latest for this to work.

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Many thanks @gerhard. Appreciate the change and the notification.

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