first commit

node_modules/source-map/lib/read-wasm-browser.js

@@ -0,0 +1,23 @@
+"use strict";
+
+let mappingsWasm = null;
+
+module.exports = function readWasm() {
+  if (typeof mappingsWasm === "string") {
+    return fetch(mappingsWasm).then(response => response.arrayBuffer());
+  }
+  if (mappingsWasm instanceof ArrayBuffer) {
+    return Promise.resolve(mappingsWasm);
+  }
+
+  throw new Error(
+    "You must provide the string URL or ArrayBuffer contents " +
+      "of lib/mappings.wasm by calling " +
+      "SourceMapConsumer.initialize({ 'lib/mappings.wasm': ... }) " +
+      "before using SourceMapConsumer"
+  );
+};
+
+module.exports.initialize = input => {
+  mappingsWasm = input;
+};