As of now, eww does not rim the user specified address, this often
leads to problems especially if the address is from the clipboard (eww
reports that the service isnt known). Most browsers automatically do
this, so I have included a patch to solve this problem.

This patch simply setq's url to a "trimmed" version of it.
The change is pretty non trivial, so I think it can be included in this release.

diff --git a/lisp/net/eww.el b/lisp/net/eww.el
index e8eb09c..aa3e245 100644
--- a/lisp/net/eww.el
+++ b/lisp/net/eww.el
@@ -153,6 +153,10 @@ See also `eww-form-checkbox-selected-symbol'."
 If the input doesn't look like an URL or a domain name, the
 word(s) will be searched for via `eww-search-prefix'."
   (interactive "sEnter URL or keywords: ")
+  (setq url (replace-regexp-in-string (rx (or (: bos (* (any " \t\n")))
+                                             (: (* (any " \t\n")) eos)))
+                                     ""
+                                     url))
   (cond ((string-match-p "\\`file://" url))
         ((string-match-p "\\`ftp://" url)
          (user-error "FTP is not supported."))

-- 
Vibhav Pant
vibhavp@gmail.com