diff --git a/panda/src/downloader/httpChannel.I b/panda/src/downloader/httpChannel.I
index ebb7fe8be3..aeaecb458e 100644
--- a/panda/src/downloader/httpChannel.I
+++ b/panda/src/downloader/httpChannel.I
@@ -165,6 +165,34 @@ get_redirect() const {
   return _redirect;
 }
 
+////////////////////////////////////////////////////////////////////
+//     Function: HTTPChannel::get_num_redirect_trail
+//       Access: Published
+//  Description: If the document automatically followed one or more
+//               redirects, this will return the number of redirects
+//               that were automatically followed.  Use
+//               get_redirect_trail() to retrieve each URL in
+//               sequence.
+////////////////////////////////////////////////////////////////////
+INLINE int HTTPChannel::
+get_num_redirect_trail() const {
+  return _redirect_trail.size();
+}
+
+////////////////////////////////////////////////////////////////////
+//     Function: HTTPChannel::get_redirect_trail
+//       Access: Published
+//  Description: Use in conjunction with get_num_redirect_trail() to
+//               extract the chain of URL's that the channel was
+//               automatically redirected through to arrive at the
+//               final document.
+////////////////////////////////////////////////////////////////////
+INLINE const URLSpec &HTTPChannel::
+get_redirect_trail(int n) const {
+  nassertr(n >= 0 && n < (int)_redirect_trail.size(), _redirect_trail[0]);
+  return _redirect_trail[n];
+}
+
 ////////////////////////////////////////////////////////////////////
 //     Function: HTTPChannel::set_persistent_connection
 //       Access: Published
diff --git a/panda/src/downloader/httpChannel.cxx b/panda/src/downloader/httpChannel.cxx
index ff57ef701e..8abdc2e56e 100644
--- a/panda/src/downloader/httpChannel.cxx
+++ b/panda/src/downloader/httpChannel.cxx
@@ -1738,11 +1738,14 @@ run_reading_header() {
                                     _method == HTTPEnum::M_head)) {
       // Sure!
       URLSpec new_url = get_redirect();
-      if (!_redirect_trail.insert(new_url).second) {
+      if (find(_redirect_trail.begin(), _redirect_trail.end(),
+               new_url) != _redirect_trail.end()) {
         downloader_cat.warning()
           << "cycle detected in redirect to " << new_url << "\n";
         
       } else {
+        _redirect_trail.push_back(new_url);
+
         if (downloader_cat.is_debug()) {
           downloader_cat.debug()
             << "following redirect to " << new_url << "\n";
diff --git a/panda/src/downloader/httpChannel.h b/panda/src/downloader/httpChannel.h
index d1137bc431..40ad46a344 100644
--- a/panda/src/downloader/httpChannel.h
+++ b/panda/src/downloader/httpChannel.h
@@ -36,6 +36,7 @@
 #include "bioPtr.h"
 #include "bioStreamPtr.h"
 #include "pmap.h"
+#include "pvector.h"
 #include "pointerTo.h"
 #include "config_downloader.h"
 #include "filename.h"
@@ -115,6 +116,9 @@ PUBLISHED:
   INLINE const URLSpec &get_redirect() const;
   string get_header_value(const string &key) const;
 
+  INLINE int get_num_redirect_trail() const;
+  INLINE const URLSpec &get_redirect_trail(int n) const;
+
   INLINE void set_persistent_connection(bool persistent_connection);
   INLINE bool get_persistent_connection() const;
 
@@ -394,7 +398,7 @@ private:
   string _current_field_value;
   ISocketStream *_body_stream;
   BIO *_sbio;
-  pset<URLSpec> _redirect_trail;
+  pvector<URLSpec> _redirect_trail;
   int _last_status_code;
   double _last_run_time;
 
diff --git a/panda/src/downloader/httpClient.cxx b/panda/src/downloader/httpClient.cxx
index 15d4114a0f..2cce61a0ae 100644
--- a/panda/src/downloader/httpClient.cxx
+++ b/panda/src/downloader/httpClient.cxx
@@ -708,8 +708,8 @@ write_cookies(ostream &out) const {
 ////////////////////////////////////////////////////////////////////
 //     Function: HTTPClient::send_cookies
 //       Access: Published
-//  Description: Writes to the indicated ostream a set of Cookie:
-//               lines for sending the cookies appropriate to the
+//  Description: Writes to the indicated ostream a "Cookie" header
+//               line for sending the cookies appropriate to the
 //               indicated URL along with an HTTP request.  This also
 //               removes expired cookies.
 ////////////////////////////////////////////////////////////////////
@@ -717,6 +717,7 @@ void HTTPClient::
 send_cookies(ostream &out, const URLSpec &url) {
   HTTPDate now = HTTPDate::now();
   bool any_expired = false;
+  bool first_cookie = true;
 
   Cookies::const_iterator ci;
   for (ci = _cookies.begin(); ci != _cookies.end(); ++ci) {
@@ -725,11 +726,20 @@ send_cookies(ostream &out, const URLSpec &url) {
       any_expired = true;
 
     } else if (cookie.matches_url(url)) {
-      out << "Cookie: " << cookie.get_name() << "=" 
-          << cookie.get_value() << "\r\n";
+      if (first_cookie) {
+        out << "Cookie: ";
+        first_cookie = false;
+      } else {
+        out << "; ";
+      }
+      out << cookie.get_name() << "=" << cookie.get_value();
     }
   }
 
+  if (!first_cookie) {
+    out << "\r\n";
+  }
+
   if (any_expired) {
     Cookies new_cookies;
     Cookies::const_iterator ci;