[Discover] Bug in expanded document url-links

[dezwei]

Kibana version:
7.4
Elasticsearch version:
7.4
Server OS version:
CentOs 7
Browser version:
Firefox /Chrome
Browser OS version:

Original install method (e.g. download page, yum, from source, etc.):
yum
Describe the bug:
When expanding a document in Discover (url)links are shown as plain text and are not clickable.
In summary of the document, it's shown correctly.
Steps to reproduce:

1. Set link via Settings->Kibana Index Patterns -> Edit Field-> Url /link
2. Label Template as {{value}}
3. Watch a document in discover and expand it

Expected behavior:
Link should only only show {{value}} and it should be clickable
Bug begins to exist in 7.4

[elasticmachine]

Pinging @elastic/kibana-app (Team:KibanaApp)

[antcodd]

In most cases the URLs display not just as unclickable but as a raw URL <a href>. In some cases the value is just unclickable, possible when there is an array of items.

Here's an example using the Flights example data for some different field types. "Broken URL" is a scripted field.

This also applies to expanded documents in saved search dashboard panels. This is a pretty user unfriendly regression.

[timroes]

cc @kertal could you have a look at this?

[kertal]

@timroes of course, already was thinking of a good solution for this

[dezwei]

If it is in array, the raw HTML link is not even shown. My quick fix for not in array item was looking for a href but is definitely a ugly one.

[kertal]

will be fixed by #48911 ... and further improvements then by #48728

[dezwei]

In which version will the fix be included? 7.5?

[timroes]

@dezwei we're currently still investigating the proper fix for this bug, and I can update here as soon as we know something about fixed versions.

[kertal]

Fixed by #49326

[antcodd]

This bug appears to be mostly fixed in 7.4.2, but there are still some escaping issues. If leaving the label template as blank the URL displayed has escape characters in it. Workaround: explicitly set the label template to {{value}}. The hyperlink is correct.

e.g. https://www.example.com?foo=1&bar=2 displays as https://www.example.com?foo=1&bar=2