diff --git a/wp-admin/js/media.js b/wp-admin/js/media.js
index 8b603205f6..c992b5d3a4 100644
--- a/wp-admin/js/media.js
+++ b/wp-admin/js/media.js
@@ -10,7 +10,7 @@
  * @requires jQuery
  */
 
-/* global ajaxurl, attachMediaBoxL10n, _wpMediaGridSettings, showNotice, findPosts */
+/* global ajaxurl, _wpMediaGridSettings, showNotice, findPosts */
 
 ( function( $ ){
 	window.findPosts = {
@@ -124,12 +124,12 @@
 				spinner.removeClass( 'is-active' );
 			}).done( function( x ) {
 				if ( ! x.success ) {
-					$( '#find-posts-response' ).text( attachMediaBoxL10n.error );
+					$( '#find-posts-response' ).text( wp.i18n.__( 'An error has occurred. Please reload the page and try again.' ) );
 				}
 
 				$( '#find-posts-response' ).html( x.data );
 			}).fail( function() {
-				$( '#find-posts-response' ).text( attachMediaBoxL10n.error );
+				$( '#find-posts-response' ).text( wp.i18n.__( 'An error has occurred. Please reload the page and try again.' ) );
 			});
 		}
 	};
diff --git a/wp-admin/js/media.min.js b/wp-admin/js/media.min.js
index e4d448a391..64e014038a 100644
--- a/wp-admin/js/media.min.js
+++ b/wp-admin/js/media.min.js
@@ -1,2 +1,2 @@
 /*! This file is auto-generated */
-!function(s){window.findPosts={open:function(n,i){var e=s(".ui-find-overlay");return 0===e.length&&(s("body").append('<div class="ui-find-overlay"></div>'),findPosts.overlay()),e.show(),n&&i&&s("#affected").attr("name",n).val(i),s("#find-posts").show(),s("#find-posts-input").focus().keyup(function(n){27==n.which&&findPosts.close()}),findPosts.send(),!1},close:function(){s("#find-posts-response").empty(),s("#find-posts").hide(),s(".ui-find-overlay").hide()},overlay:function(){s(".ui-find-overlay").on("click",function(){findPosts.close()})},send:function(){var n={ps:s("#find-posts-input").val(),action:"find_posts",_ajax_nonce:s("#_ajax_nonce").val()},i=s(".find-box-search .spinner");i.addClass("is-active"),s.ajax(ajaxurl,{type:"POST",data:n,dataType:"json"}).always(function(){i.removeClass("is-active")}).done(function(n){n.success||s("#find-posts-response").text(attachMediaBoxL10n.error),s("#find-posts-response").html(n.data)}).fail(function(){s("#find-posts-response").text(attachMediaBoxL10n.error)})}},s(document).ready(function(){var n,i=s("#wp-media-grid");if(i.length&&window.wp&&window.wp.media){n=_wpMediaGridSettings;var e=window.wp.media({frame:"manage",container:i,library:n.queryVars}).open();i.trigger("wp-media-grid-ready",e)}s("#find-posts-submit").click(function(n){s('#find-posts-response input[type="radio"]:checked').length||n.preventDefault()}),s("#find-posts .find-box-search :input").keypress(function(n){if(13==n.which)return findPosts.send(),!1}),s("#find-posts-search").click(findPosts.send),s("#find-posts-close").click(findPosts.close),s("#doaction, #doaction2").click(function(i){s('select[name^="action"]').each(function(){var n=s(this).val();"attach"===n?(i.preventDefault(),findPosts.open()):"delete"===n&&(showNotice.warn()||i.preventDefault())})}),s(".find-box-inside").on("click","tr",function(){s(this).find(".found-radio input").prop("checked",!0)})})}(jQuery);
\ No newline at end of file
+!function(s){window.findPosts={open:function(n,e){var i=s(".ui-find-overlay");return 0===i.length&&(s("body").append('<div class="ui-find-overlay"></div>'),findPosts.overlay()),i.show(),n&&e&&s("#affected").attr("name",n).val(e),s("#find-posts").show(),s("#find-posts-input").focus().keyup(function(n){27==n.which&&findPosts.close()}),findPosts.send(),!1},close:function(){s("#find-posts-response").empty(),s("#find-posts").hide(),s(".ui-find-overlay").hide()},overlay:function(){s(".ui-find-overlay").on("click",function(){findPosts.close()})},send:function(){var n={ps:s("#find-posts-input").val(),action:"find_posts",_ajax_nonce:s("#_ajax_nonce").val()},e=s(".find-box-search .spinner");e.addClass("is-active"),s.ajax(ajaxurl,{type:"POST",data:n,dataType:"json"}).always(function(){e.removeClass("is-active")}).done(function(n){n.success||s("#find-posts-response").text(wp.i18n.__("An error has occurred. Please reload the page and try again.")),s("#find-posts-response").html(n.data)}).fail(function(){s("#find-posts-response").text(wp.i18n.__("An error has occurred. Please reload the page and try again."))})}},s(document).ready(function(){var n,e=s("#wp-media-grid");if(e.length&&window.wp&&window.wp.media){n=_wpMediaGridSettings;var i=window.wp.media({frame:"manage",container:e,library:n.queryVars}).open();e.trigger("wp-media-grid-ready",i)}s("#find-posts-submit").click(function(n){s('#find-posts-response input[type="radio"]:checked').length||n.preventDefault()}),s("#find-posts .find-box-search :input").keypress(function(n){if(13==n.which)return findPosts.send(),!1}),s("#find-posts-search").click(findPosts.send),s("#find-posts-close").click(findPosts.close),s("#doaction, #doaction2").click(function(e){s('select[name^="action"]').each(function(){var n=s(this).val();"attach"===n?(e.preventDefault(),findPosts.open()):"delete"===n&&(showNotice.warn()||e.preventDefault())})}),s(".find-box-inside").on("click","tr",function(){s(this).find(".found-radio input").prop("checked",!0)})})}(jQuery);
\ No newline at end of file
diff --git a/wp-includes/script-loader.php b/wp-includes/script-loader.php
index bc762340ca..3ff287211a 100644
--- a/wp-includes/script-loader.php
+++ b/wp-includes/script-loader.php
@@ -1357,13 +1357,7 @@ function wp_default_scripts( $scripts ) {
 
 		$scripts->add( 'media-grid', "/wp-includes/js/media-grid$suffix.js", array( 'media-editor' ), false, 1 );
 		$scripts->add( 'media', "/wp-admin/js/media$suffix.js", array( 'jquery' ), false, 1 );
-		did_action( 'init' ) && $scripts->localize(
-			'media',
-			'attachMediaBoxL10n',
-			array(
-				'error' => __( 'An error has occurred. Please reload the page and try again.' ),
-			)
-		);
+		$scripts->set_translations( 'media' );
 
 		$scripts->add( 'image-edit', "/wp-admin/js/image-edit$suffix.js", array( 'jquery', 'jquery-ui-core', 'json2', 'imgareaselect', 'wp-a11y' ), false, 1 );
 		$scripts->set_translations( 'image-edit' );
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 5ebad64486..aa1852851c 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.5-alpha-48383';
+$wp_version = '5.5-alpha-48384';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.