diff --git a/environment-dev_3.1.45.yml b/environment-dev_3.1.45.yml
index c91225b..2d5d5c8 100644
--- a/environment-dev_3.1.45.yml
+++ b/environment-dev_3.1.45.yml
@@ -8,7 +8,7 @@ dependencies:
   - yarn
   - click
   - empack >=3.0.1
-  - microsoft::playwright
+  - microsoft::playwright <= 1.50
   - ninja
   - nodejs
   - pyjs_code_runner >= 2.0.1
diff --git a/environment-dev_3.1.58.yml b/environment-dev_3.1.58.yml
index 1525559..6e520e8 100644
--- a/environment-dev_3.1.58.yml
+++ b/environment-dev_3.1.58.yml
@@ -8,7 +8,7 @@ dependencies:
   - yarn
   - click
   - empack >=3.0.1
-  - microsoft::playwright
+  - microsoft::playwright <= 1.50
   - ninja
   - nodejs
   - pyjs_code_runner >= 2.0.1
diff --git a/include/pyjs/pre_js/dynload/dynload.js b/include/pyjs/pre_js/dynload/dynload.js
index 1629367..8ee2482 100644
--- a/include/pyjs/pre_js/dynload/dynload.js
+++ b/include/pyjs/pre_js/dynload/dynload.js
@@ -202,13 +202,18 @@ async function loadDynlib(prefix, lib, global, searchDirs, readFileFunc) {
         const fs = createDynlibFS(prefix, lib, searchDirs, readFileFunc);
 
         const libName = Module.PATH.basename(lib);
-        //console.log(`load ${lib}      (${libName}) `)
+        
+        // contains cpython-3 and with wasm32-emscripten
+        const is_cython_lib = libName.includes("cpython-3") && libName.includes("wasm32-emscripten");
+
+        // load cython library from full path
+        const load_name = is_cython_lib ? lib : libName;
 
-        await Module.loadDynamicLibrary(libName, {
+        await Module.loadDynamicLibrary(load_name, {
             loadAsync: true,
             nodelete: true,
             allowUndefined: true,
-            global: global,
+            global: global && !is_cython_lib,
             fs: fs
         })
         
@@ -219,13 +224,14 @@ async function loadDynlib(prefix, lib, global, searchDirs, readFileFunc) {
             console.execption(`Failed to load ${libName} from ${lib} LDSO not found`);
         }
 
-        if (!dsoOnlyLibName) {
+        if(!is_cython_lib){
+            if (!dsoOnlyLibName) {
+                Module.LDSO.loadedLibsByName[libName] = dsoFullLib
+            }
             
-            Module.LDSO.loadedLibsByName[libName] = dsoFullLib
-        }
-        
-        if(!dsoFullLib){
-            Module.LDSO.loadedLibsByName[lib] = dsoOnlyLibName;
+            if(!dsoFullLib){
+                Module.LDSO.loadedLibsByName[lib] = dsoOnlyLibName;
+            }
         }
     } finally {
         releaseDynlibLock();