diff --git a/Makefile b/Makefile
index 885d6d97..0251b1c4 100644
--- a/Makefile
+++ b/Makefile
@@ -96,7 +96,7 @@ js-test:
 build/js/infomap.worker.js: $(SOURCES) $(PRE_WORKER_MODULE)
 	@echo "Compiling Infomap to run in a worker in the browser..."
 	@mkdir -p $(dir $@)
-	em++ -std=c++14 -O3 -s WASM=0 -s ALLOW_MEMORY_GROWTH=1 -s DISABLE_EXCEPTION_CATCHING=0 -s ENVIRONMENT=worker --pre-js $(PRE_WORKER_MODULE) -o build/js/$(WORKER_FILENAME) $(SOURCES)
+	em++ -std=c++14 -O3 -s WASM=1 -s ALLOW_MEMORY_GROWTH=1 -s DISABLE_EXCEPTION_CATCHING=0 -s ENVIRONMENT=worker --pre-js $(PRE_WORKER_MODULE) -o build/js/$(WORKER_FILENAME) $(SOURCES)
 
 js-clean:
 	$(RM) -r build/js interfaces/js/src/worker index.js *.d.ts README.md
diff --git a/interfaces/js/pre-worker-module.js b/interfaces/js/pre-worker-module.js
index 38bfb272..f287edec 100644
--- a/interfaces/js/pre-worker-module.js
+++ b/interfaces/js/pre-worker-module.js
@@ -8,16 +8,6 @@ function readFile(filename) {
 
 let outName = "Untitled";
 
-let memoryHackRequest = {
-  status: 200,
-  useRequest: null,
-  addEventListener: function (event, callback) {
-    if (event === "load") {
-      this.useRequest = callback;
-    }
-  },
-};
-
 var Module = {
   arguments: [],
   preRun: function () {
@@ -72,14 +62,10 @@ var Module = {
     };
     postMessage({ type: "finished", content });
   },
-  memoryInitializerRequest: memoryHackRequest,
 };
 
 onmessage = function onmessage(message) {
   const data = message.data;
-
-  memoryHackRequest.response = data.memBuffer;
-  memoryHackRequest.useRequest();
   outName = data.outName;
   Module.arguments.push(...[data.filename, ".", ...data.arguments]);
   FS.writeFile(data.filename, data.network);
diff --git a/interfaces/js/src/index.ts b/interfaces/js/src/index.ts
index 0e02c56a..1f980755 100644
--- a/interfaces/js/src/index.ts
+++ b/interfaces/js/src/index.ts
@@ -7,8 +7,6 @@ import fileToString, {
 import networkToString, { NetworkTypes } from "./network";
 // @ts-ignore
 import InfomapWorker from "./worker/infomap.worker.js";
-// @ts-ignore
-import MemFile from "./worker/infomap.worker.js.mem";
 
 export interface Changelog {
   body: string | null;
@@ -194,7 +192,6 @@ class Infomap {
     this.workers[id] = worker;
 
     worker.postMessage({
-      memBuffer: new Uint8Array(MemFile),
       arguments: args.split(" "),
       filename,
       network,