Youtube links converted to upper case are not working

[3DCuser]

When switching to an H5 template, all the youtube links for some reason got converted to upper text, although the link itself is lower text. When pasting these youtube links to facebook, the underlying link is removed and just the upper case remains, which does not work. Is there a fix?

Interestingly, when editing the products in the editor, they are lower case there. But when viewing the products in a browser they convert to upper case.

[3DCuser]

Just tried adding a new youtube link and it edits properly (lower case) but when viewed with a browser it's upper case. This is Barber-HTM5 template. Nobody else is getting upper case in a browser?