URL Double Encode

While working with the IMCE file uploader in combination with file names that include characters which need to be URL encoded such as:

http://example.com/sites/default/files/file name with spaces in it.pdf

IMCE will return the URL to the file URL Encoded as:

http://example.com/sites/default/files/file%20name%20with%20spaces%20in%20it.pdf

We then modify the URL to include "internal:" as needed.

Pathfilter will then pass the URL through the url() function which calls drupal_urlencode(), causing a second encoding of the URL into:

http://example.com/sites/default/files/file%2520name%2520with%2520spaces%2520in%2520it.pdf

One solution would be to de-urlencode the URL before it is passed into the url() function.

Another solution would be to use an custom URL function that does not re-encode it.