addExtraLib does not work as expect

[holynewbie]

I want manoco editor to has some package's types, like dayjs, so I get all *.d.ts files in dayjs package and call addExtraLib to register all type file, but it does not work as expect.

type FileInfo = {
  name: string;
  code: string;
};

/**
* all *.d.ts in dayjs
* just like
* {
*   name: 'index.d.ts',
*   code: ''; // content copy from https://cdn.jsdelivr.net/npm/[email protected]/index.d.ts
* }
*/
const files: FileInfo[] = [];

for (const { name, code } of files) {
 const path = `file://node_modules/dayjs/${name}`;
  monaco.languages.typescript.typescriptDefaults.addExtraLib(code, path);
}

it results as below

but in TypeScript Play, it works fine

monaco editor: 0.40.0 ( I tried the latest version, 0.45.0, no diffs )