TYPO3 Core

btw: using the most recent version 9.3

you've got to be kidding me. thanks for finding this one!

will test ASAP.

Did you try to include one part by

<INCLUDE_TYPOSCRIPT: source="...">

?

My current scenario is that I've a sitepackage and I never use the setup-field in the BE-templates but include only my template from sitepackage.
In that file I include more files but have some setup too.

In that combination I get some values overwritten.

A similar fault has been discovered and is available here: https://typo3.slack.com/archives/C025BQLFA/p1529333764000650
I copy the text from there:

hello channel! I got something crazy with the includeJSLibs and includeJSFooterlibs:
Fontawesome-Include did'nt work:

    includeJSLibs {
        100 = {$settings.resources}/Public/3rdParty/jquery/jquery-3.2.1.min.js
        150 = {$settings.resources}/Public/3rdParty/font-awesome/fontawesome-free-5.0.13/fontawesome-all.min.js
    }

    includeJSFooterlibs {
        150 = {$settings.resources}/Public/3rdParty/popperjs/popper-1.12.3.min.js
        200 = {$settings.resources}/Public/3rdParty/bootstrap/bootstrap-4.1.0-dist/js/bootstrap.min.js
    }

  
    includeJSLibs {
        100 = {$settings.resources}/Public/3rdParty/jquery/jquery-3.2.1.min.js
        151 = {$settings.resources}/Public/3rdParty/font-awesome/fontawesome-free-5.0.13/fontawesome-all.min.js
    }

    includeJSFooterlibs {
        150 = {$settings.resources}/Public/3rdParty/popperjs/popper-1.12.3.min.js
        200 = {$settings.resources}/Public/3rdParty/bootstrap/bootstrap-4.1.0-dist/js/bootstrap.min.js
    }

It looks like the array get an override by includeJSFooterlibs - Is someone able to reproduce this?

While I could not reproduce the initial error with the CSS, the JavaScript issue seems valid.

CSS issue:¶

I tested adding the CSS like you mentioned above, even with <INCLUDE_TYPOSCRIPT: source="DIR: ./lib" extensions="typoscript">

But in my case, all stylesheets were loaded in the frontend.

JavaScript issue:¶

This issue I was able to reproduce on current master:

page {
    includeJSLibs {
        100 = EXT:basetemplate8/Resources/Public/JavaScript/jquery.min.js
    }

    includeJSFooterlibs {
        100 = EXT:basetemplate8/Resources/Public/JavaScript/three.min.js
    }
}

The issue is not limited to using numbers for including the files.

As these issues are different from each other, I opened a new issue: #85353

JS (separate issue) is resolved now.

How about the CSS-issue mentioned here? Is that somehow reproducible? Any hints?

I think that this issue is solved on the latest master I tried the following test: on the latest master 9.5.1-dev:

1) create a couple of simple CSS files:

fileadmin/alpha.css

body{background:red;}

fileadmin/beta.css

body{font-size:50px;}

2) Write in TS Setup:

config.no_cache=1

page {
  includeCSS{
    alpha = fileadmin/alpha.css
  }
}

page {
  includeCSS{
    beta = fileadmin/beta.css
  }
}

Results: Both styles are applied¶

I also tried with:

config.no_cache=1

page {
  includeCSS{
    100 = fileadmin/alpha.css
  }
}

page {
  includeCSSLibs{
    100 = fileadmin/beta.css
  }
}

with the same results.

Do you think it is sufficient to consider this issue solved? Should I perform a different test?

still have it on my list.
Will test asap and give feedback.

I just tested it by myself because it got my attention....but so far everything works nice.
So I guess that's already fixed, I cannot reproduce it.