Wait for markdown preview selector

Author: code-asher

test/e2e/webview.test.ts

@@ -18,11 +18,9 @@ describe("Webviews", ["--disable-workspace-trust"], {}, () => {
 
     // It's an iframe within an iframe
     // so we have to do .frameLocator twice
-    const renderedText = await codeServerPage.page
+    await codeServerPage.page
       .frameLocator("iframe.webview.ready")
       .frameLocator("#active-frame")
-      .locator("text=Hello world")
-
-    expect(renderedText).toBeVisible()
+      .waitForSelector("text=Hello world")
   })
 })