diff --git a/app/index.htm b/app/index.htm
index 915616b..96ee9d9 100644
--- a/app/index.htm
+++ b/app/index.htm
@@ -64,15 +64,17 @@
                 o['WEBAPP_PATH'] = '/app?_=' + Date.now();                                      // cache busting
                 fs.writeFileSync(data + '/settings.json', JSON.stringify(o, null, 2));  // commit changes to disk
 
-                // install asarpwn3 for crispr
-                if (!window.__crisprloaded)
-                    if (asarinject(
-                        "// App preload script, used to provide a replacement native API now that\n// we turned off node integration.\nvar electron = require('electron'",
-                        "var electron=require('electron');var d=electron.remote.app.getPath('userData')+'/crispr.js';if(require('fs').existsSync(d))require(d).go();//"
-                    )) {
-                        electron.app.relaunch();
-                        electron.app.exit();
-                    }
+                try {
+                    // install asarpwn3 for crispr
+                    if (!window.__crisprloaded)
+                        if (asarinject(
+                            "// App preload script, used to provide a replacement native API now that\n// we turned off node integration.\nvar electron = require('electron'",
+                            "var electron=require('electron');var d=electron.remote.app.getPath('userData')+'/crispr.js';if(require('fs').existsSync(d))require(d).go();//"
+                        )) {
+                            electron.app.relaunch();
+                            electron.app.exit();
+                        }
+                } catch{ }
 
                 // make a window
                 window.__monitor = new electron.BrowserWindow({ show: false });