Is there any way to use locally placed jquery libs instead of cdn?

[spacedrone404]

I am trying to setup picture gallery viewer in a local manner, but not with a generic cdn. For eg i have following working code in header.html:

<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/fancybox/3.4.0/jquery.fancybox.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/fancybox/3.4.0/jquery.fancybox.min.css" />

If i try something like with locally placed files:

<script src="assets/js/jquery-3.3.1.min.js"></script>
<script src="assets/js/jquery.fancybox.min.js"></script>
<link rel="stylesheet" href="assets/css/jquery.fancybox.min.css" />

code is simply not working, however the paths to files are correct by opinion of vscodium.

Tried to place files into static folder of the project and static folder of theme. Also tried

 customCSS = ["css/custom.css"] # Include custom CSS files
  customJS = ["js/custom.js"] # Include custom JS files

Can't get it working.

Any thoughts on this?

[spacedrone404]

Also i find out that there is a thing related code in baseof.html:

<script async defer src="{{ "js/menu.js" | relURL }}"></script>
{{ range .Site.Params.customJS -}}
<script src="{{ . | relURL }}"></script>
{{- end }}

Currently is looking for solution.

[Vimux]

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