Dark theme: you can't see the quote mark in the dark theme, so for unrenderable URL previews it looks like a oddly-large gap.

[ara4n]

surely they should take up zero height if they don't load

[lampholder]

Have you got a screenshot/good example? URLs that don't resolve to real domains/pages don't seem to be taking up any height for me on develop or stable.

[ara4n]

...........actually this isn't a regression, it's always been like this. but on the dark theme you can't see the quote mark so it looks like entirely whitespace.

[lampholder]

Two/three possible fixes:

• change the styling on the dark-theme quote (easy)
• render a 'this URL can't be previewed' note rather than an empty quote (also easy, slightly more time-consuming)
• in the case of the specific example, make the URL preview thing able to preview JSON (marginally less easy, again more time-consuming, actually quite useful)