diff --git a/src/browser.ts b/src/browser.ts
index 9ca5bd6c..83a7744d 100644
--- a/src/browser.ts
+++ b/src/browser.ts
@@ -70,7 +70,7 @@ export const launchBrowser = async (
       `--proxy-server=http://localhost:${appSettings.proxy.port}`,
       `--ignore-certificate-errors-spki-list=${certificateSPKI}`,
       disableChromeOptimizations,
-      url ?? '',
+      url?.trim() || 'about:blank',
     ],
     onExit: sendBrowserClosedEvent,
   })