diff --git a/wp-includes/class.wp-scripts.php b/wp-includes/class.wp-scripts.php
index cc88455bc1..f63517f7e1 100644
--- a/wp-includes/class.wp-scripts.php
+++ b/wp-includes/class.wp-scripts.php
@@ -227,7 +227,7 @@ class WP_Scripts extends WP_Dependencies {
 			return $output;
 		}
 
-		echo "<script{$this->type_attr}>\n";
+		printf( "<script%s id='%s-js-extra'>\n", $this->type_attr, esc_attr( $handle ) );
 
 		// CDATA is not needed for HTML 5.
 		if ( $this->type_attr ) {
@@ -298,11 +298,11 @@ class WP_Scripts extends WP_Dependencies {
 		$after_handle  = $this->print_inline_script( $handle, 'after', false );
 
 		if ( $before_handle ) {
-			$before_handle = sprintf( "<script%s>\n%s\n</script>\n", $this->type_attr, $before_handle );
+			$before_handle = sprintf( "<script%s id='%s-js-before'>\n%s\n</script>\n", $this->type_attr, esc_attr( $handle ), $before_handle );
 		}
 
 		if ( $after_handle ) {
-			$after_handle = sprintf( "<script%s>\n%s\n</script>\n", $this->type_attr, $after_handle );
+			$after_handle = sprintf( "<script%s id='%s-js-after'>\n%s\n</script>\n", $this->type_attr, esc_attr( $handle ), $after_handle );
 		}
 
 		if ( $before_handle || $after_handle ) {
@@ -366,7 +366,7 @@ class WP_Scripts extends WP_Dependencies {
 
 		$translations = $this->print_translations( $handle, false );
 		if ( $translations ) {
-			$translations = sprintf( "<script%s>\n%s\n</script>\n", $this->type_attr, $translations );
+			$translations = sprintf( "<script%s id='%s-js-translations'>\n%s\n</script>\n", $this->type_attr, esc_attr( $handle ), $translations );
 		}
 
 		if ( ! preg_match( '|^(https?:)?//|', $src ) && ! ( $this->content_url && 0 === strpos( $src, $this->content_url ) ) ) {
@@ -385,7 +385,7 @@ class WP_Scripts extends WP_Dependencies {
 		}
 
 		$tag  = $translations . $cond_before . $before_handle;
-		$tag .= sprintf( "<script%s src='%s'></script>\n", $this->type_attr, $src );
+		$tag .= sprintf( "<script%s src='%s' id='%s-js'></script>\n", $this->type_attr, $src, esc_attr( $handle ) );
 		$tag .= $after_handle . $cond_after;
 
 		/**
@@ -458,7 +458,7 @@ class WP_Scripts extends WP_Dependencies {
 		$output = trim( implode( "\n", $output ), "\n" );
 
 		if ( $echo ) {
-			printf( "<script%s>\n%s\n</script>\n", $this->type_attr, $output );
+			printf( "<script%s id='%s-js-%s'>\n%s\n</script>\n", $this->type_attr, esc_attr( $handle ), esc_attr( $position ), $output );
 		}
 
 		return $output;
@@ -595,7 +595,7 @@ class WP_Scripts extends WP_Dependencies {
 JS;
 
 		if ( $echo ) {
-			printf( "<script%s>\n%s\n</script>\n", $this->type_attr, $output );
+			printf( "<script%s id='%s-js-translations'>\n%s\n</script>\n", $this->type_attr, esc_attr( $handle ), $output );
 		}
 
 		return $output;
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 6e9d15eb90..c91379bccf 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.5-alpha-48294';
+$wp_version = '5.5-alpha-48295';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.