Bug in getFragment

[switz]

url: search?q=ben%27s

if query has an apostrophe in it, this breaks, for example:

query => ?q=ben%27s
queryRegExp => \?q=ben%27s

      // Add the query string, if not already present
      if (query && !fragment.match(queryRegExp)) {
        fragment += query;
      }

This passes the test above and leads to fragment being doubled over, returning:

fragment => search?q=ben's?q=ben%27s 

You should decode the query before crafting a regex:

decodeURIComponent(query).replace(escapeRegExp, '\\$&');