Fix allow data uri on img (#27)

* Fix allow_data_uri on img tag breaking regular url When allow_data_uri is set to true and allowed_hosts is kept at null the latter is converted to [null] which disallows all urls * Dont override current list of allowedHosts
tgalopin · Apr 5, 2019 · 858f83a · 858f83a
1 parent 46e69ed
commit 858f83a
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/Extension/Image/Sanitizer/ImgSrcSanitizer.php b/src/Extension/Image/Sanitizer/ImgSrcSanitizer.php
@@ -38,7 +38,9 @@ public function sanitize(?string $input): ?string
 
         if ($this->allowDataUri) {
             $allowedSchemes[] = 'data';
-            $allowedHosts[] = null;
+            if (null !== $allowedHosts) {
+                $allowedHosts[] = null;
+            }
         }
 
         if (!$sanitized = $this->sanitizeUrl($input, $allowedSchemes, $allowedHosts, $this->forceHttps)) {