diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6cd7b5efe..6457b6b27 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -112,8 +112,6 @@ if(BUILD_TESTING)
     include(external_gtest)
 endif()
 
-include(emscripten_node_runner)
-
 # Libraries (+ their includes)
 add_subdirectory(parser_library)
 
diff --git a/benchmark/CMakeLists.txt b/benchmark/CMakeLists.txt
index bb3d78146..cf63ac846 100644
--- a/benchmark/CMakeLists.txt
+++ b/benchmark/CMakeLists.txt
@@ -15,7 +15,6 @@ project(benchmark)
 add_executable(benchmark
     benchmark.cpp
     diagnostic_counter.h)
-generate_emscripten_node_runner(benchmark)
 
 target_include_directories(benchmark
     PRIVATE
diff --git a/clients/vscode-hlasmplugin/build/bin/bundle.mjs b/clients/vscode-hlasmplugin/build/bin/bundle.mjs
index e470a2c56..c5db6d1a7 100644
--- a/clients/vscode-hlasmplugin/build/bin/bundle.mjs
+++ b/clients/vscode-hlasmplugin/build/bin/bundle.mjs
@@ -76,41 +76,6 @@ for (const bd of buildDetails) {
     });
 }
 
-if (target === 1) {
-    const main = fs.readFileSync('bin/wasm/hlasm_language_server.mjs', { encoding: 'utf8' });
-    const worker = `
-if (!isPthread) {
-    const tmpQueue = [];
-    self.onmessage = (event) => {
-        self.onmessage = (event) => { tmpQueue.push(event); };
-
-        const { extensionUri, arguments } = event.data;
-
-        return Module({
-            tmpQueue,
-            worker: self,
-            arguments,
-            locateFile(path) {
-                if (typeof path !== 'string') return path;
-                if (path.endsWith(".wasm")) {
-                    return extensionUri + 'bin/wasm/hlasm_language_server.wasm';
-                }
-                return path;
-            },
-        });
-    }
-}
-`;
-    const superRunner = main
-        .replaceAll('import.meta.url', 'self.location.href')
-        .replace('"type":"module",', '')
-        .replace('export default Module', '// export default Module')
-        .replace('if (isNode)', '// if (isNode)')
-        .concat(worker);
-
-    fs.writeFileSync('bin/wasm/hlasm_language_server_web.js', superRunner);
-}
-
 console.log('Done!');
 
 // details follow
diff --git a/clients/vscode-hlasmplugin/src/serverFactory.web.ts b/clients/vscode-hlasmplugin/src/serverFactory.web.ts
index 35374eb22..5ad0012c7 100644
--- a/clients/vscode-hlasmplugin/src/serverFactory.web.ts
+++ b/clients/vscode-hlasmplugin/src/serverFactory.web.ts
@@ -23,7 +23,7 @@ export async function createLanguageServer(_serverVariant: ServerVariant, client
     if (!extensionUri.endsWith('/'))
         extensionUri += '/';
 
-    const worker = new Worker(extensionUri + 'bin/wasm/hlasm_language_server_web.js');
+    const worker = new Worker(extensionUri + 'bin/wasm/hlasm_language_server.js');
     worker.postMessage({ INIT: "INIT", extensionUri, arguments: decorateArgs(getConfig<string[]>('arguments', [])) });
 
     return new vscodelc.LanguageClient(EXTENSION_ID, 'HLASM extension Language Server', clientOptions, worker);
diff --git a/cmake/emscripten_node_runner.cmake b/cmake/emscripten_node_runner.cmake
deleted file mode 100644
index 4d268bd4e..000000000
--- a/cmake/emscripten_node_runner.cmake
+++ /dev/null
@@ -1,25 +0,0 @@
-# Copyright (c) 2023 Broadcom.
-# The term "Broadcom" refers to Broadcom Inc. and/or its subsidiaries.
-#
-# This program and the accompanying materials are made
-# available under the terms of the Eclipse Public License 2.0
-# which is available at https://www.eclipse.org/legal/epl-2.0/
-#
-# SPDX-License-Identifier: EPL-2.0
-#
-# Contributors:
-#   Broadcom, Inc. - initial API and implementation
-
-function(generate_emscripten_node_runner target)
-    if (NOT EMSCRIPTEN)
-        return()
-    endif()
-    if (NOT ${CMAKE_EXECUTABLE_SUFFIX_CXX} STREQUAL ".mjs")
-        return()
-    endif()
-    add_custom_command(
-        TARGET ${target}
-        POST_BUILD
-        COMMAND ${CMAKE_COMMAND} -D "OUTPUT_FILE=$<TARGET_FILE_DIR:${target}>/$<TARGET_FILE_PREFIX:${target}>$<TARGET_FILE_BASE_NAME:${target}>.js" -D "INPUT_FILE=$<TARGET_FILE_NAME:${target}>" -P "${CMAKE_CURRENT_FUNCTION_LIST_DIR}/emscripten_node_runner_generator.cmake"
-    )
-endfunction()
diff --git a/cmake/emscripten_node_runner_generator.cmake b/cmake/emscripten_node_runner_generator.cmake
deleted file mode 100644
index 988ee516b..000000000
--- a/cmake/emscripten_node_runner_generator.cmake
+++ /dev/null
@@ -1,14 +0,0 @@
-# Copyright (c) 2023 Broadcom.
-# The term "Broadcom" refers to Broadcom Inc. and/or its subsidiaries.
-#
-# This program and the accompanying materials are made
-# available under the terms of the Eclipse Public License 2.0
-# which is available at https://www.eclipse.org/legal/epl-2.0/
-#
-# SPDX-License-Identifier: EPL-2.0
-#
-# Contributors:
-#   Broadcom, Inc. - initial API and implementation
-
-message(STATUS "Generating Node runner for ${INPUT_FILE} into ${OUTPUT_FILE}...")
-configure_file("${CMAKE_CURRENT_LIST_DIR}/node_runner.js.template" ${OUTPUT_FILE})
diff --git a/cmake/node_runner.js.template b/cmake/node_runner.js.template
deleted file mode 100755
index 00dd080b1..000000000
--- a/cmake/node_runner.js.template
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/usr/bin/env node
-import(require('url').pathToFileURL(require('path').join(__dirname, '${INPUT_FILE}'))).then(m => m.default({ arguments: process.argv.slice(2) }));
diff --git a/cmake/wasm_post.js b/cmake/wasm_post.js
new file mode 100644
index 000000000..e3eb5eec5
--- /dev/null
+++ b/cmake/wasm_post.js
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2024 Broadcom.
+ * The term "Broadcom" refers to Broadcom Inc. and/or its subsidiaries.
+ *
+ * This program and the accompanying materials are made
+ * available under the terms of the Eclipse Public License 2.0
+ * which is available at https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ *   Broadcom, Inc. - initial API and implementation
+ */
+
+if (typeof importScripts == "function") {
+    const tmpQueue = [];
+    self.onmessage = (event) => {
+        self.onmessage = (event) => { tmpQueue.push(event); };
+
+        const { extensionUri, arguments } = event.data;
+
+        Module({
+            tmpQueue,
+            worker: self,
+            arguments,
+            mainScriptUrlOrBlob: self.location.href,
+            locateFile(path) {
+                if (typeof path !== 'string') return path;
+                if (path.endsWith(".wasm")) {
+                    return extensionUri + 'bin/wasm/hlasm_language_server.wasm';
+                }
+                return path;
+            },
+        });
+    }
+}
+else if (require.main === module) {
+    Module();
+}
diff --git a/language_server/CMakeLists.txt b/language_server/CMakeLists.txt
index 67e38a9de..86b7a258c 100644
--- a/language_server/CMakeLists.txt
+++ b/language_server/CMakeLists.txt
@@ -20,7 +20,6 @@ add_library(hlasm_language_server_base OBJECT)
 target_include_directories(hlasm_language_server_base PRIVATE src)
 
 add_executable(hlasm_language_server)
-generate_emscripten_node_runner(hlasm_language_server)
 
 add_subdirectory(src)
 
diff --git a/language_server/test/CMakeLists.txt b/language_server/test/CMakeLists.txt
index faf172e20..1f5e07fa4 100644
--- a/language_server/test/CMakeLists.txt
+++ b/language_server/test/CMakeLists.txt
@@ -11,7 +11,6 @@
 #   Broadcom, Inc. - initial API and implementation
 
 add_executable(server_test)
-generate_emscripten_node_runner(server_test)
 
 target_sources(server_test PRIVATE
     blocking_queue_test.cpp
diff --git a/parser_library/fuzzer/CMakeLists.txt b/parser_library/fuzzer/CMakeLists.txt
index df92239ba..3102f646d 100644
--- a/parser_library/fuzzer/CMakeLists.txt
+++ b/parser_library/fuzzer/CMakeLists.txt
@@ -16,7 +16,6 @@ Project(fuzzer)
 if(BUILD_FUZZER)
     add_executable(library_fuzzer)
     set_target_properties(library_fuzzer PROPERTIES LINK_FLAGS "-fsanitize=fuzzer")
-    generate_emscripten_node_runner(library_fuzzer)
 else()
     add_library(library_fuzzer STATIC)
 endif()
diff --git a/parser_library/test/CMakeLists.txt b/parser_library/test/CMakeLists.txt
index d056d1535..e6e79a9dc 100644
--- a/parser_library/test/CMakeLists.txt
+++ b/parser_library/test/CMakeLists.txt
@@ -11,7 +11,6 @@
 #   Broadcom, Inc. - initial API and implementation
 
 add_executable(library_test)
-generate_emscripten_node_runner(library_test)
 
 target_sources(library_test PRIVATE
     aread_time_test.cpp
diff --git a/scripts/config.wasm.sh b/scripts/config.wasm.sh
index 7ec1388a9..869e0ed95 100755
--- a/scripts/config.wasm.sh
+++ b/scripts/config.wasm.sh
@@ -1,3 +1,3 @@
 #!/usr/bin/env bash
 set -e
-emcmake cmake -G Ninja -DCMAKE_VERIFY_HEADER_SETS=On -DCMAKE_BUILD_TYPE=Release -DDISCOVER_TESTS=Off -DWITH_LIBCXX=Off -DWITH_STATIC_CRT=Off -DCMAKE_CXX_FLAGS="-s USE_PTHREADS=1 -fwasm-exceptions" -DUSE_PRE_GENERATED_GRAMMAR="generated_parser" -DCMAKE_EXE_LINKER_FLAGS="-s PTHREAD_POOL_SIZE=8 -s MAXIMUM_MEMORY=2147418112 -s INITIAL_MEMORY=268435456 -s ALLOW_MEMORY_GROWTH=1 -s PROXY_TO_PTHREAD=1 -s EXPORT_ES6=1 -s EXIT_RUNTIME=1 --bind -s STACK_SIZE=4MB -fwasm-exceptions" -DCMAKE_CROSSCOMPILING_EMULATOR="node;--experimental-wasm-eh" -DCMAKE_EXECUTABLE_SUFFIX_CXX=.mjs -Dgtest_disable_pthreads=On -DBUILD_VSIX=Off ../
+emcmake cmake -G Ninja -DCMAKE_VERIFY_HEADER_SETS=On -DCMAKE_BUILD_TYPE=Release -DDISCOVER_TESTS=Off -DWITH_LIBCXX=Off -DWITH_STATIC_CRT=Off -DCMAKE_CXX_FLAGS="-s USE_PTHREADS=1 -fwasm-exceptions" -DUSE_PRE_GENERATED_GRAMMAR="generated_parser" -DCMAKE_EXE_LINKER_FLAGS="-s PTHREAD_POOL_SIZE=8 -s MAXIMUM_MEMORY=2147418112 -s INITIAL_MEMORY=268435456 -s ALLOW_MEMORY_GROWTH=1 -s PROXY_TO_PTHREAD=1 -s MODULARIZE=1 -s EXIT_RUNTIME=1 --bind -s STACK_SIZE=4MB -fwasm-exceptions --extern-post-js `pwd`/../cmake/wasm_post.js" -DCMAKE_CROSSCOMPILING_EMULATOR="node;--experimental-wasm-eh" -Dgtest_disable_pthreads=On -DBUILD_VSIX=Off ../
diff --git a/scripts/test-runner.wasm.sh b/scripts/test-runner.wasm.sh
index 654fccfc5..407184e84 100755
--- a/scripts/test-runner.wasm.sh
+++ b/scripts/test-runner.wasm.sh
@@ -1,4 +1,4 @@
 #!/usr/bin/env bash
 set -e
 node --experimental-wasm-eh $1.js
-node --experimental-wasm-eh --eval "import('$1.mjs').then(m=>{m.default({web:true})})"
+node --experimental-wasm-eh --eval "require('$1.js')({web:true})"
diff --git a/utils/test/CMakeLists.txt b/utils/test/CMakeLists.txt
index e17a678d8..12eb551a1 100644
--- a/utils/test/CMakeLists.txt
+++ b/utils/test/CMakeLists.txt
@@ -11,7 +11,6 @@
 #   Broadcom, Inc. - initial API and implementation
 
 add_executable(hlasm_utils_test)
-generate_emscripten_node_runner(hlasm_utils_test)
 
 target_sources(hlasm_utils_test PRIVATE
     bk_tree_test.cpp