fix: anchor disappear in notes app for accentuated chars - EXO-68365 - …

…Meeds-io/meeds#1495 (#573)

Before this change, when create or edit note, add some lines in the
body, select a text click on anchor icon in ckeditor, in Anchor Name
type text containing accents, save note and edit note, anchor containing
accentuated chars disappear. To resolve this problem, remove the
accentuted chars in the anchor name. After this change, anchors are well
displayed with name without accents.

(cherry picked from commit c11f217)

commons-extension-webapp/src/main/webapp/ckeditor/plugins/link/dialogs/anchor.js

@@ -15,7 +15,10 @@ CKEDITOR.dialog.add( 'anchor', function( editor ) {
 			attributes: attributes
 		} ), 'cke_anchor', 'anchor' );
 	}
-
+
+	function removeAccents( name ) {
+		return name.normalize("NFD").replace(/[\u0300-\u036f]/g, "");
+	}
 
 	function getSelectedAnchor( selection ) {
 		var range = selection.getRanges()[ 0 ],
@@ -69,8 +72,9 @@ CKEDITOR.dialog.add( 'anchor', function( editor ) {
 			return getSelectedAnchor( editor.getSelection() ) || null;
 		},
 		onOk: function() {
-			var name = CKEDITOR.tools.trim( this.getValueOf( 'info', 'txtName' ) ),
-				attributes = {
+			var name = CKEDITOR.tools.trim( this.getValueOf( 'info', 'txtName' ) );
+			name = removeAccents(name);
+			var attributes = {
 					id: name,
 					name: name,
 					'data-cke-saved-name': name