Index: modules/proxy/mod_proxy_wstunnel.c
===================================================================
--- modules/proxy/mod_proxy_wstunnel.c	(revision 1581864)
+++ modules/proxy/mod_proxy_wstunnel.c	(working copy)
@@ -103,10 +103,12 @@
         rv = ap_get_brigade(c_i->input_filters, bb, AP_MODE_READBYTES,
                             APR_NONBLOCK_READ, AP_IOBUFSIZE);
         if (rv == APR_SUCCESS) {
-            if (c_o->aborted)
+            if (c_o->aborted) {
                 return APR_EPIPE;
-            if (APR_BRIGADE_EMPTY(bb))
+            }
+            if (APR_BRIGADE_EMPTY(bb)) {
                 break;
+            }
 #ifdef DEBUGGING
             len = -1;
             apr_brigade_length(bb, 0, &len);
@@ -178,7 +180,6 @@
     conn_rec *c = r->connection;
     apr_socket_t *sock = conn->sock;
     conn_rec *backconn = conn->connection;
-    int client_error = 0;
     char *buf;
     apr_bucket_brigade *header_brigade;
     apr_bucket *e;
@@ -224,7 +225,7 @@
 
     pollfd.p = p;
     pollfd.desc_type = APR_POLL_SOCKET;
-    pollfd.reqevents = APR_POLLIN;
+    pollfd.reqevents = APR_POLLIN | APR_POLLHUP;
     pollfd.desc.s = sock;
     pollfd.client_data = NULL;
     apr_pollset_add(pollset, &pollfd);
@@ -237,6 +238,9 @@
     r->proto_output_filters = c->output_filters;
     r->input_filters = c->input_filters;
     r->proto_input_filters = c->input_filters;
+    /* This handler should take care of the entire connection; make it so that
+     * nothing else is attempted on the connection after returning. */
+    c->keepalive = AP_CONN_CLOSE;
 
     remove_reqtimeout(r->input_filters);
 
@@ -257,38 +261,34 @@
 
             if (cur->desc.s == sock) {
                 pollevent = cur->rtnevents;
-                if (pollevent & APR_POLLIN) {
+                if (pollevent & (APR_POLLIN | APR_POLLHUP)) {
                     ap_log_rerror(APLOG_MARK, APLOG_TRACE1, 0, r, APLOGNO(02446)
                                   "sock was readable");
                     rv = proxy_wstunnel_transfer(r, backconn, c, bb, "sock");
-                    }
-                else if ((pollevent & APR_POLLERR)
-                         || (pollevent & APR_POLLHUP)) {
-                         rv = APR_EPIPE;
-                         ap_log_rerror(APLOG_MARK, APLOG_NOTICE, 0, r, APLOGNO(02447)
-                                       "err/hup on backconn");
                 }
+                else if (pollevent & APR_POLLERR) {
+                     rv = APR_EPIPE;
+                     ap_log_rerror(APLOG_MARK, APLOG_TRACE1, 0, r, APLOGNO(02447)
+                                   "error on reading from server conn");
+                }
                 else { 
                     rv = APR_EGENERAL;
                     ap_log_rerror(APLOG_MARK, APLOG_NOTICE, 0, r, APLOGNO(02605)
                             "unknown event on backconn %d", pollevent);
                 }
-                if (rv != APR_SUCCESS)
-                    client_error = 1;
             }
             else if (cur->desc.s == client_socket) {
                 pollevent = cur->rtnevents;
-                if (pollevent & APR_POLLIN) {
+                if (pollevent & (APR_POLLIN | APR_POLLHUP)) {
                     ap_log_rerror(APLOG_MARK, APLOG_TRACE1, 0, r, APLOGNO(02448)
                                   "client was readable");
                     rv = proxy_wstunnel_transfer(r, c, backconn, bb, "client");
                 }
-                else if ((pollevent & APR_POLLERR)
-                        || (pollevent & APR_POLLHUP)) {
+                else if (pollevent & APR_POLLERR) {
                     rv = APR_EPIPE;
                     c->aborted = 1;
                     ap_log_rerror(APLOG_MARK, APLOG_TRACE1, 0, r, APLOGNO(02607)
-                            "err/hup on client conn");
+                            "error on reading from client conn");
                 }
                 else { 
                     rv = APR_EGENERAL;
@@ -311,9 +311,6 @@
     ap_log_rerror(APLOG_MARK, APLOG_TRACE2, 0, r,
                   "finished with poll() - cleaning up");
 
-    if (client_error) {
-        return HTTP_INTERNAL_SERVER_ERROR;
-    }
     return OK;
 }