Show error if refresh fails

services/web/app/views/project/editor/binary-file.pug

@@ -74,3 +74,7 @@ div.binary-file.full-size(
 			i.fa.fa-fw.fa-download
 			|
 			| #{translate("download")}
+		div(ng-if="refreshError")
+			br
+			.alert.alert-danger.col-md-6.col-md-offset-3
+				| Error: {{ refreshError}}

services/web/public/coffee/ide/binary-files/controllers/BinaryFileController.coffee

@@ -31,6 +31,7 @@ define [
 			data: null
 
 		$scope.refreshing = false
+		$scope.refreshError = null
 
 		MAX_URL_LENGTH = 60
 		FRONT_OF_URL_LENGTH = 35
@@ -48,6 +49,7 @@ define [
 
 		$scope.refreshFile = (file) ->
 			$scope.refreshing = true
+			$scope.refreshError = null
 			ide.fileTreeManager.refreshLinkedFile(file)
 				.then (response) ->
 					{ data } = response
@@ -57,6 +59,9 @@ define [
 							ide.binaryFilesManager.openFileById(new_file_id)
 						, 1000
 					)
+					$scope.refreshError = null
+				.catch (response) ->
+					$scope.refreshError = response.data
 				.finally () ->
 					$scope.refreshing = false