HTMX 2.0.3 with client-side-templates and Mustache not working

[PetrVobornik]

Combination HTMX last version 2.0.3 + extension client-side-templates 2.0.3 with Mustache not working as in previows version 1.9.12.

<!-- Version 1.9.12 - WORKS FINE -->
<script src="https://unpkg.com/htmx.org@1.9.12"></script>
<script src="https://unpkg.com/htmx.org@1.9.12/dist/ext/client-side-templates.js"></script>
<script src="https://unpkg.com/mustache@latest"></script>

<!-- Version 2.0.3 - NOT WORKING -->
<script src="https://unpkg.com/htmx.org@2.0.3"></script>
<script src="https://unpkg.com/htmx.org@2.0.3/dist/ext/client-side-templates.js"></script>
<script src="https://unpkg.com/mustache@latest"></script>

Here I have prepared a sample of two pages that differ only in the version of HTMX used: https://playcode.io/2129377?v=2

[MichaelWest22]

https://htmx.org/migration-guide-htmx-1/ https://github.com/bigskysoftware/htmx-extensions/blob/main/src/client-side-templates/README.md

When upgrading from htmx v1 to v2 there are some changes that were implemented so you may need to be aware of them. Biggest change impacting you is that now by default htmx v2 does not allow unsafe requests to external urls. There is a note about this also at the bottom of the client side templates extension documentation as well.

[PetrVobornik]

Thank you and I'm sorry, I didn't notice that. Adding this meta tag solved the problem and everything works as before.

<meta name="htmx-config" content='{"selfRequestsOnly":false}'>