importing json results in assertion error

[Kilian]

Description

In my Remix entry files I import json:

import en from "javascript-time-ago/locale/en.json";

When running with remix-vite, this results in an error:

TypeError: Module "file:///projectfolder/node_modules/javascript-time-ago/locale/en.json" needs an import assertion of type "json"

So I add an assertion:

import en from "javascript-time-ago/locale/en.json" assert {type: "json"};

and that gives me a different error:

SyntaxError: projectfolder/app/entry.server.tsx: Support for the experimental syntax 'importAssertions' isn't currently enabled (10:53):

According to the vite docs, json shouldn't need an assertion: https://vitejs.dev/guide/features.html#json

Library version

0.2.2

Node version

v16.18.0