Tutorial step 3 doesn't work under Firefox

Vue version

recent version

Link to minimal reproduction

https://vuejs.org/tutorial/#step-3

Steps to reproduce

Clicked on "Show me!"

What is expected?

"Make me red" did turn into red because of iframe issue

What is actually happening?

Console log:

An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can remove its sandboxing. tutorial
[@vue/repl] successfully compiled 1 module. utils.a9fa9546.js:1:931566
Uncaught TypeError: Error resolving module specifier “vue”. Relative module specifiers must start with “./”, “../” or “/”. tutorial:7:118
Uncaught TypeError: Error resolving module specifier “vue”. Relative module specifiers must start with “./”, “../” or “/”. tutorial:1:40
^^ Module TypeError above is polyfilled and can be ignored ^^ srcdoc:160:15

System Info

- Linux Mint 21
- Firefox 106.0.1

Any additional comments?

No response

Open the Vue tutorial link and reproduce step 3 in Firefox by clicking “Show me!”. Start by examining the reported iframe warning and the “vue” module-resolution error in the browser console. Done means the tutorial step works in Firefox and “Make me red” turns red without the reported failure.