message: Updated test fixture with one encoded and one unencoded space to demonstrate Postel's law
diff: -<link rel="import" href="dependencies/spaces in import.html">
  +<!--
  +Note, one space is encoded, the other is not. In the end, both should be
  +treated as encoded '%20' values, because the ' ' value is technically invalid.
  +-->
  +<link rel="import" href="dependencies/spaces in%20import.html">
  