Test that links with unknown schemes are removed

Author: aroben

test/html/pipeline/sanitization_filter_test.rb

@@ -45,6 +45,12 @@ def test_github_specific_protocols_are_not_removed
     assert_equal stuff, SanitizationFilter.call(stuff).to_s
   end
 
+  def test_unknown_schemes_are_removed
+    stuff = '<a href="something-weird://heyyy">Wat</a> is this'
+    html  = SanitizationFilter.call(stuff).to_s
+    assert_equal '<a>Wat</a> is this', html
+  end
+
   def test_script_contents_are_removed
     orig = '<script>JavaScript!</script>'
     assert_equal "", SanitizationFilter.call(orig).to_s