- Linting (ESLint): Finish extensions and most files in editor/; unfinished: editor/svg-editor.js, editor/svgcanvas.js

- Linting (ESLint): Fix ignore file paths
- History `elem` fix

editor/extensions/fileopen.php

@@ -11,30 +11,30 @@
  */
 	// Very minimal PHP file, all we do is Base64 encode the uploaded file and
 	// return it to the editor
-	
+
 	if (!isset($_REQUEST['type'])) {
-		echo "No type given";
+		echo 'No type given';
 		exit;
 	}
 	$type = $_REQUEST['type'];
 	if (!in_array($type, array('load_svg', 'import_svg', 'import_img'))) {
-		echo "Not a recognized type";
+		echo 'Not a recognized type';
 		exit;
 	}
 
 	require('allowedMimeTypes.php');
-	
+
 	$file = $_FILES['svg_file']['tmp_name'];
-	
+
 	$output = file_get_contents($file);
-	
+
 	$prefix = '';
 
 	// Make Data URL prefix for import image
 	if ($type == 'import_img') {
 		$info = getimagesize($file);
 		if (!in_array($info['mime'], $allowedMimeTypesBySuffix)) {
-			echo "Disallowed MIME for supplied file";
+			echo 'Disallowed MIME for supplied file';
 			exit;
 		}
 		$prefix = 'data:' . $info['mime'] . ';base64,';
@@ -45,7 +45,7 @@
 <meta charset="utf-8" />
 <script>
 
-top.svgEditor.processFile("<?php 
+top.svgEditor.processFile("<?php
 
 // This should be safe since SVG edit does its own filtering (e.g., if an SVG file contains scripts)
 echo $prefix . base64_encode($output);