JabRef version

5.5 (latest release)

Operating system

GNU / Linux

Details on version and operating system

Ubunut 21.10

Checked with the latest development build

• I made a backup of my libraries before testing the latest development version.
• I have tested the latest development version and the problem persists

Steps to reproduce the behaviour

1. For an entry go to the General tab.
2. Test this URL to see where it should go
3. Enter the above URL into the URL field (in the General tab).
4. Click the (chain icon) link icon for the entry in the reference list.
5. Goes to a 'not found' page.

You can see the reason - as soon as you enter/paste the URL into the URL field the '+' in the URL is replaced with a white space.

Full version info:
JabRef 5.5--2022-01-17--27a05c7
Linux 5.13.0-25-generic amd64
Java 16.0.2
JavaFX 17.0.1+1

Appendix

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