added test

Author: bytestream

test/HTML5/Html5Test.php

@@ -480,4 +480,13 @@ public function testCDATA()
         $res = $this->cycleFragment('a<![CDATA[ This <is> a test. ]]>b');
         $this->assertRegExp('|<!\[CDATA\[ This <is> a test\. \]\]>|', $res);
     }
+
+    public function testAnchorTargetQueryParam()
+    {
+        $res = $this->cycle("<a href=\"https://domain.com/page.php?foo=bar&target=baz\">https://domain.com/page.php?foo=bar&target=baz</a>");
+        $this->assertStringContainsString(
+            "<a href=\"https://domain.com/page.php?foo=bar&amp;target=baz\">https://domain.com/page.php?foo=bar&amp;target=baz</a>",
+            $res
+        );
+    }
 }