@jspm/generator/lib/common/wrapper.js

Package Import Map Generation Tool

import { fetch } from "../common/fetch.js";
import { parse, init } from "es-module-lexer";
export async function getMaybeWrapperUrl(moduleUrl, fetchOpts) {
    await init;
    const source = await (await fetch(moduleUrl, fetchOpts)).text();
    const [imports, , facade] = parse(source);
    if (facade && imports.length) {
        try {
            return new URL(imports[0].n, moduleUrl).href;
        } catch  {}
    }
    return moduleUrl;
}


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