OpenVPN client export custom config text area not showing multiple lines on Firefox

[muchachagrande]

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Describe the bug
In OpenVPN > Client Export there is a text field to add a custom config that will be returned in
the output file.
When I add 3 commands on 3 different lines to this field, all 3 commands are shown in one line separated with spaces, when there should be seen as 3 consecutive lines of text.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'VPN > OpenVPN > Client Export'
2. Click on 'Custom config text field'
3. Write some line of text and press Enter to continue writing on the next line
4. The problem is that the new line is shown as a space so the following line is shown just next to the previous one, so all entered commands are shown on one long line

Expected behavior
The various entered lines of custom config should be seen one on multiple lines of text.

Screenshots
This is how I see 3 command:

fragment 1250 mssfix 1250 tun-mtu 1500

This is how it should be seen:

fragment 1250
mssfix 1250
tun-mtu 1500

OPNsense 19.7.6-amd64
FreeBSD 11.2-RELEASE-p14-HBSD
OpenSSL 1.0.2t 10 Sep 2019
Running on VMWare ESXi 6.7

[AdSchellevis]

I can't reproduce this on my end (using Chrome):

The generated config file shows multiple lines as well.

Maybe a browser issue?

[muchachagrande]

You are right, I'm using Firefox. I've just tested with Chrome and it shows fine.
Exported config shows multiple lines on both browsers.
May be it can be fixed by using the same textbox attributes that are being used in Advanced Config of the OpenVPN configuration, that is being viewed correctly on Firefox.

[AdSchellevis]

Its' not the input itself, for some reason the content seems to be cleansed in firefox.

[AdSchellevis]

ok, looks like this https://bugzilla.mozilla.org/show_bug.cgi?id=1137650 should be fixed with fde54d9 (opnsense-patch fde54d9 on a console)

[muchachagrande]

@AdSchellevis ... tested and now it's ok... thank you