diff --git a/pywb/framework/wbrequestresponse.py b/pywb/framework/wbrequestresponse.py
index 8cbabc49..808563ea 100644
--- a/pywb/framework/wbrequestresponse.py
+++ b/pywb/framework/wbrequestresponse.py
@@ -78,6 +78,8 @@ class WbRequest(object):
                                                  rel_prefix,
                                                  env.get('SCRIPT_NAME', '/'),
                                                  cookie_scope)
+
+            self.urlrewriter.deprefix_url()
         else:
         # no wb_url, just store blank wb_url
             self.wb_url = None
diff --git a/pywb/rewrite/test/test_url_rewriter.py b/pywb/rewrite/test/test_url_rewriter.py
index 7d3d1e41..be0ca7da 100644
--- a/pywb/rewrite/test/test_url_rewriter.py
+++ b/pywb/rewrite/test/test_url_rewriter.py
@@ -74,6 +74,18 @@
 >>> UrlRewriter('2013id_/example.com/file/path/blah.html', '/123/').get_new_url(timestamp='20131024')
 '/123/20131024id_/http://example.com/file/path/blah.html'
 
+# deprefix tests
+>>> do_deprefix('2013id_/http://example.com/file/path/blah.html?param=http://localhost:8080/pywb/20141226/http://example.com/', '/pywb/', 'http://localhost:8080/pywb/')
+'http://example.com/file/path/blah.html?param=http://example.com/'
+
+>>> do_deprefix('2013id_/http://example.com/file/path/blah.html?param=http://localhost:8080/pywb/if_/https://example.com/filename.html', '/pywb/', 'http://localhost:8080/pywb/')
+'http://example.com/file/path/blah.html?param=https://example.com/filename.html'
+
+>>> do_deprefix('2013id_/http://example.com/file/path/blah.html?param=http://localhost:8080/pywb/https://example.com/filename.html', '/pywb/', 'http://localhost:8080/pywb/')
+'http://example.com/file/path/blah.html?param=https://example.com/filename.html'
+
+>>> do_deprefix('http://example.com/file.html?param=http://localhost:8080/pywb/https%3A//example.com/filename.html&other=value&a=b&param2=http://localhost:8080/pywb/http://test.example.com', '/pywb/', 'http://localhost:8080/pywb/')
+'http://example.com/file.html?param=https://example.com/filename.html&other=value&a=b&param2=http://test.example.com'
 
 # HttpsUrlRewriter tests
 >>> HttpsUrlRewriter('http://example.com/', None).rewrite('https://example.com/abc')
@@ -86,13 +98,22 @@
 
 
 from pywb.rewrite.url_rewriter import UrlRewriter, HttpsUrlRewriter
-
+import urllib
 
 def do_rewrite(rel_url, base_url, prefix, mod=None, full_prefix=None):
     rewriter = UrlRewriter(base_url, prefix, full_prefix=full_prefix)
     return rewriter.rewrite(rel_url, mod)
 
 
+def do_deprefix(url, rel_prefix, full_prefix):
+    encoded = urllib.quote_plus(full_prefix)
+    url = url.replace(full_prefix, encoded)
+
+    rewriter = UrlRewriter(url, rel_prefix, full_prefix)
+    url = rewriter.deprefix_url()
+    return urllib.unquote_plus(url)
+
+
 if __name__ == "__main__":
     import doctest
     doctest.testmod()
diff --git a/pywb/rewrite/url_rewriter.py b/pywb/rewrite/url_rewriter.py
index 5fc3a18e..61a48e50 100644
--- a/pywb/rewrite/url_rewriter.py
+++ b/pywb/rewrite/url_rewriter.py
@@ -1,4 +1,3 @@
-import copy
 import urlparse
 
 from wburl import WbUrl
@@ -88,6 +87,9 @@ class UrlRewriter(object):
         cls = get_cookie_rewriter(scope)
         return cls(self)
 
+    def deprefix_url(self):
+        return self.wburl.deprefix_url(self.full_prefix)
+
     def __repr__(self):
         return "UrlRewriter('{0}', '{1}')".format(self.wburl, self.prefix)
 
@@ -150,3 +152,6 @@ class HttpsUrlRewriter(UrlRewriter):
 
     def get_cookie_rewriter(self, scope=None):
         return None
+
+    def deprefix_url(self):
+        return self.wburl.url
diff --git a/pywb/rewrite/wburl.py b/pywb/rewrite/wburl.py
index de789ac0..91d36455 100644
--- a/pywb/rewrite/wburl.py
+++ b/pywb/rewrite/wburl.py
@@ -39,7 +39,7 @@ wayback url format.
 """
 
 import re
-
+import urllib
 
 #=================================================================
 class BaseWbUrl(object):
@@ -149,6 +149,14 @@ class WbUrl(BaseWbUrl):
         self.timestamp = timestamp
         self.type = self.REPLAY
 
+
+    def deprefix_url(self, prefix):
+        prefix = urllib.quote_plus(prefix)
+        rex_query = '=' + re.escape(prefix) + '([0-9])*([\w]{2}_)?/?'
+        new_url = re.sub(rex_query, '=', self.url)
+        self.url = new_url
+        return self.url
+
     # Str Representation
     # ====================
     def to_str(self, **overrides):