feat: fetch remote resources

Author: cap-Bernardito

src/utils.js

@@ -60,9 +60,7 @@ async function flattenSourceMap(map) {
       },
     };
 
-    if (source) {
-      generatedMap.addMapping(mappings);
-    }
+    generatedMap.addMapping(mappings);
   });
 
   return generatedMap.toJSON();

test/__snapshots__/loader.test.js.snap

@@ -485,10 +485,12 @@ exports[`source-map-loader should support file protocol path: map 1`] = `
 Object {
   "mappings": "CAAC,IAAI,IAAM,SAAUA,GAClB,OAAOA",
   "sources": Array [
+    "/test/fixtures/normal-file.js - (normalized for test)",
     "/test/fixtures/normal-file.js - (normalized for test)",
     "/test/fixtures/normal-file2.js - (normalized for test)",
   ],
   "sourcesContent": Array [
+    "static content",
     "without SourceMap",
     "// without SourceMap
 anInvalidDirective = \\"\\\\n/*# sourceMappingURL=data:application/json;base64,\\"+btoa(unescape(encodeURIComponent(JSON.stringify(sourceMap))))+\\" */\\";

test/loader.test.js

@@ -200,11 +200,15 @@ describe('source-map-loader', () => {
     const rawSourceMap = {
       version: 3,
       sources: [
+        `file://${path
+          .resolve(__dirname, 'fixtures', 'normal-file.js')
+          .replace(/\\/g, '/')}`,
         'normal-file.js',
         `file://${path
           .resolve(__dirname, 'fixtures', 'normal-file2.js')
           .replace(/\\/g, '/')}`,
       ],
+      sourcesContent: ['static content'],
       mappings: 'CAAC,IAAI,IAAM,SAAUA,GAClB,OAAOA',
     };
     fs.writeFileSync(sourceMapPath, JSON.stringify(rawSourceMap));