Writing flow: attempt to fix preview e2e failure (#33467)

packages/block-editor/src/components/writing-flow/use-tab-nav.js

@@ -103,7 +103,13 @@ export default function useTabNav() {
 			const direction = isShift ? 'findPrevious' : 'findNext';
 
 			if ( ! hasMultiSelection() && ! getSelectedBlockClientId() ) {
-				setNavigationMode( true );
+				// Preserve the behaviour of entering navigation mode when
+				// tabbing into the content without a block selection.
+				// `onFocusCapture` already did this previously, but we need to
+				// do it again here because after clearing block selection,
+				// focus land on the writing flow container and pressing Tab
+				// will no longer send focus through the focus capture element.
+				if ( event.target === node ) setNavigationMode( true );
 				return;
 			}
 

packages/e2e-tests/specs/editor/plugins/iframed-inline-styles.test.js

@@ -13,6 +13,7 @@ import {
 } from '@wordpress/e2e-test-utils';
 
 async function getComputedStyle( context, property ) {
+	await context.waitForSelector( '.wp-block-test-iframed-inline-styles' );
 	return await context.evaluate( ( prop ) => {
 		const container = document.querySelector(
 			'.wp-block-test-iframed-inline-styles'
@@ -47,9 +48,6 @@ describe( 'iframed inline styles', () => {
 		await page.keyboard.type( 'Iframed Test' );
 		await clickButton( 'Create' );
 		await page.waitForSelector( 'iframe[name="editor-canvas"]' );
-		await canvas().waitForSelector(
-			'.wp-block-test-iframed-inline-styles'
-		);
 
 		// Inline styles of properly enqueued stylesheet should load.
 		expect( await getComputedStyle( canvas(), 'padding' ) ).toBe( '20px' );