Importing a typeScript file resource with .js extension from html file or a typeScript file fails

[oscarmarina]

Describe the bug

Importing a typeScript file with .js extension from html file or a typeScript file fails

• similar issue

Reproduction

README:

https://github.com/oscarmarina/import-typescritp-file-with-js-extension-fail

System Info

System:
    OS: macOS 11.5.2
    CPU: (4) x64 Intel(R) Core(TM) i5-5287U CPU @ 2.90GHz
    Memory: 109.00 MB / 16.00 GB
    Shell: 5.8 - /bin/zsh
  Binaries:
    Node: 15.14.0 - ~/.nvm/versions/node/v15.14.0/bin/node
    Yarn: 1.22.11 - ~/.nvm/versions/node/v15.14.0/bin/yarn
    npm: 7.22.0 - ~/.nvm/versions/node/v15.14.0/bin/npm
  Browsers:
    Chrome: 92.0.4515.159
    Chrome Canary: 95.0.4630.2
    Edge: 92.0.902.78
    Firefox: 91.0.2
    Safari: 14.1.2
    Safari Technology Preview: 15.0

Used Package Manager

npm

Logs

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Make sure this is a Vite issue and not a framework-specific issue. For example, if it's a Vue SFC related bug, it should likely be reported to https://github.com/vuejs/vue-next instead.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.

[haoqunjiang]

Let's discuss at #4848 instead.

[Niputi]

@sodatea you linked to this current issue instead of another one

[haoqunjiang]

Oops, sorry. I mean #3040