diff --git a/src/freenet/client/filter/HTMLFilter.java b/src/freenet/client/filter/HTMLFilter.java
index bc5d2ce74e..f4804734c0 100644
--- a/src/freenet/client/filter/HTMLFilter.java
+++ b/src/freenet/client/filter/HTMLFilter.java
@@ -2120,7 +2120,11 @@ static class TagVerifier {
 
 		TagVerifier(String tag, String[] allowedAttrs, String[] uriAttrs, String[] inlineURIAttrs, String[] booleanAttrs) {
 			this.tag = tag;
-			this.allowedAttrs = new HashSet<String>();
+			this.allowedAttrs = new HashSet<String>(Arrays.asList("aria-braillelabel", "aria-brailleroledescription",
+				"aria-describedby", "aria-description", "aria-details", "aria-disabled", "aria-errormessage",
+				"aria-expanded", "aria-flowto","aria-hidden","aria-invalid","aria-label","aria-labelledby","aria-level",
+				"aria-multiline","aria-multiselectable","aria-orientation","aria-owns","aria-placeholder","aria-required",
+				"aria-roledescription","aria-selected","aria-setsize","aria-sort","aria-valuemax","aria-valuemin","aria-valuenow","aria-valuetext"));
 			this.parsedAttrs = new HashSet<String>();
 			if (allowedAttrs != null) {
 				for (String allowedAttr: allowedAttrs)
diff --git a/test/freenet/client/filter/ContentFilterTest.java b/test/freenet/client/filter/ContentFilterTest.java
index b25b13316a..2c92402c88 100644
--- a/test/freenet/client/filter/ContentFilterTest.java
+++ b/test/freenet/client/filter/ContentFilterTest.java
@@ -432,7 +432,7 @@ public void testLowerCaseExtensions() {
         }
     }
 
-    private static final String ARIA_ROLE_TEST = "<span role=\"caption\" />";
+    private static final String ARIA_ROLE_TEST = "<span role=\"caption\" aria-label=\"caption\"/>";
 
     @Test
     public void testARIAProperties() throws Exception {