The source page has this wiki syntax:

* http://www.imdb.com/name/nm0324409/
* http://www.barbaragoenaga.com/index2.html
* http://www.majos.es/detalle.php?id=16

The target had this:

== Références ==
*<nowiki> http://www.imdb.com/name/nm0324409/</nowiki>
*<nowiki> http://www.barbaragoenaga.com/index2.html</nowiki>
*<nowiki> http://www.majos.es/detalle.php?id=16</nowiki>

This is probably a Parsoid issue, and AFAIK VisualEditor fixes it on the VE side. So I'm wondering whether it can be fixed in Parsoid, or does it have to be fixed in CX. I really see no reason to add <nowiki> to otherwise unchanged text.

(All that said, it's always a good idea for the translators to improve the source article before translating. In this case, turning these links into links with titles in square brackets would have prevented this problem.)

In T113565#1686221, @Amire80 wrote:

This is probably a Parsoid issue, and AFAIK VisualEditor fixes it on the VE side. So I'm wondering whether it can be fixed in Parsoid, or does it have to be fixed in CX. I really see no reason to add <nowiki> to otherwise unchanged text.

This is not a Parsoid issue. This needs fixing in CX, just like it was fixed in VE. If Parsoid gets url-like text in the HTML, Parsoid is forced to add nowikis around it to maintain HTML rendering as the editor encountered it. If a url-like text needs to be emitted as a link in wikitext (url/ext/wiki), then the HTML needs to be the right kind of <a..>..</a> tag and that is the client's responsibility (VE, Flow, CX, .... ).

VE bug T113535: Autolink doesn't take place when you finish a list item might be relevant.

I cannot reproduce this any more, but I'll leave it open for a bit more testing, and close it by the end of CX7 if it doesn't come back.

Nope, sorry, I can reproduce it. There was some network issue yesterday and MT or cxserver didn't work for me (I'm not sure what it was exactly). Now everything works, so this is still broken - external links go into nowiki.

I checked with CX2 translation which has improved template matching - for translation to cawiki (which has matching templates) the templates for external links were were matched correctly without <nowiki> tags.

Re-checked in wmf.8. The reported translation en->fr is not possible due to an ongoing translation.
The source article Barbara Goenaga has templates in external links.

==External links==
*{{IMDb name|0324409|Bárbara Goenaga}}
*{{official website|http://www.barbaragoenaga.com}}

which were added to References section in the translated articles (not sure by manual editing or by automatic translation) that resulted in the following wiki markup:

== Références ==
*<nowiki> http://www.imdb.com/name/nm0324409/</nowiki>
*<nowiki> http://www.barbaragoenaga.com/index2.html</nowiki>