[Bug]: "npm:" specifiers are currently not supported in import.meta.resolve()

[lionel-rowe]

Problem description

Same issue as denoland/deno#16089. Seems it was fixed in denoland/deno#21716 for Deno proper, but still affects Deploy.

EDIT: This only affects literal npm: specifiers, not NPM imports that use the import map. So impact is low for deployments via GitHub, but seems there's no workaround for playground projects.

Steps to reproduce

1. Try to use import.meta.resolve with an npm: specifier. For example:

   const wasmUrl = new URL('excelize.wasm.gz', import.meta.resolve('npm:excelize-wasm'))

2. Observe expected result in Deno running locally, something like the following:

   wasmUrl == 'file:///path/to/.cache/deno/npm/registry.npmjs.org/excelize-wasm/0.0.7/excelize.wasm.gz'

3. Observe error in Deno Deploy:

   TypeError: "npm:" specifiers are currently not supported in import.meta.resolve()
   

Repro: https://dash.deno.com/playground/excelize-wasm-demo

Expected behavior

Consistent behavior with local Deno, allowing for easy resolving of WASM imports

Environment

navigator.userAgent is Deno/2.1.9

Possible solution

No response

Additional context

No response