fix: Prevent undefined get_current_screen function errors (#39228)

* fix: Prevent undefined `get_current_screen` function errors This function is undefined in certain contexts -- e.g., a REST API request that results in enqueueing assets. Referencing an undefined function results in a fatal error. With the `get_current_screen` function specifically, it is common practice to check the function's existence prior to invoking the it. https://developer.wordpress.org/reference/functions/get_current_screen/#comment-5424 * docs: Add change log entry
Automattic · Sep 11, 2024 · 5ee714f · 5ee714f
1 parent 3a06084
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diff --git a/...kages/jetpack-mu-wpcom/changelog/fix-prevent-undefined-get-current-screen-function-errors b/...kages/jetpack-mu-wpcom/changelog/fix-prevent-undefined-get-current-screen-function-errors
@@ -0,0 +1,4 @@
+Significance: patch
+Type: fixed
+
+Prevent undefined `get_current_screen` function errors resulting from invoking the function in contexts where it is undefined.
diff --git a/...ges/jetpack-mu-wpcom/src/features/starter-page-templates/class-starter-page-templates.php b/...ges/jetpack-mu-wpcom/src/features/starter-page-templates/class-starter-page-templates.php
@@ -176,6 +176,10 @@ public function pass_error_to_frontend( $message ) {
 	 * Enqueue block editor assets.
 	 */
 	public function enqueue_assets() {
+		if ( ! function_exists( 'get_current_screen' ) ) {
+			return;
+		}
+
 		$screen      = get_current_screen();
 		$user_locale = Common\get_iso_639_locale( get_user_locale() );