diff --git a/src/configparser.y b/src/configparser.y
index 3d424ce3..306e5f4d 100644
--- a/src/configparser.y
+++ b/src/configparser.y
@@ -5,6 +5,7 @@
 
 %include {
 #include <assert.h>
+#include <stdio.h>
 #include "config.h"
 #include "configfile.h"
 #include "buffer.h"
@@ -31,7 +32,14 @@ metaline ::= EOL.
 
 varline ::= key(A) ASSIGN value(B). {
   buffer_copy_string_buffer(B->key, A);
-  array_insert_unique(ctx->ctx_config, B);
+  if (NULL == array_get_element(ctx->ctx_config, B->key->ptr)) {
+    array_insert_unique(ctx->ctx_config, B);
+  } else {
+    fprintf(stderr, "Duplicate config variable in conditional %s: %s\n", 
+            ctx->ctx_name->ptr, B->key->ptr);
+    ctx->ok = 0;
+    B->free(B);
+  }
   buffer_free(A);
 }
 
@@ -62,7 +70,15 @@ array(A) ::= LPARAN aelements(B) RPARAN. {
 }
 
 aelements(A) ::= aelements(C) COMMA aelement(B). {
-  array_insert_unique(C, B);
+  if (buffer_is_empty(B->key) ||
+      NULL == array_get_element(C, B->key->ptr)) {
+    array_insert_unique(C, B);
+  } else {
+    fprintf(stderr, "Duplicate array-key: %s\n", 
+            B->key->ptr);
+    B->free(B);
+    ctx->ok = 0;
+  }
   
   A = C;
 }
diff --git a/src/file_cache.c b/src/file_cache.c
index ee16c77a..dc1e1569 100644
--- a/src/file_cache.c
+++ b/src/file_cache.c
@@ -403,7 +403,7 @@ handler_t file_cache_get_entry(server *srv, connection *con, buffer *name, file_
 			
 			if (s_len < ct_len) continue;
 			
-			if (0 == strncmp(name->ptr + s_len - ct_len, ds->key->ptr, ct_len)) {
+			if (0 == strncasecmp(name->ptr + s_len - ct_len, ds->key->ptr, ct_len)) {
 				buffer_copy_string_buffer(fce->content_type, ds->value);
 				break;
 			}
diff --git a/src/mod_proxy.c b/src/mod_proxy.c
index 3ad622c6..1b920320 100644
--- a/src/mod_proxy.c
+++ b/src/mod_proxy.c
@@ -362,8 +362,6 @@ static int proxy_establish_connection(server *srv, handler_ctx *hctx) {
 			log_error_write(srv, __FILE__, __LINE__, "sdsd", 
 					"connect failed:", proxy_fd, strerror(errno), errno);
 			
-			proxy_connection_cleanup(srv, hctx);
-			
 			return -1;
 		}
 	}
@@ -631,7 +629,7 @@ static int proxy_demux_response(server *srv, handler_ctx *hctx) {
 }
 
 
-static int proxy_write_request(server *srv, handler_ctx *hctx) {
+static handler_t proxy_write_request(server *srv, handler_ctx *hctx) {
 	data_proxy *host= hctx->host;
 	
 	int r;
@@ -645,7 +643,7 @@ static int proxy_write_request(server *srv, handler_ctx *hctx) {
 		
 		if (-1 == (hctx->fd = socket(r, SOCK_STREAM, 0))) {
 			log_error_write(srv, __FILE__, __LINE__, "ss", "socket failed: ", strerror(errno));
-			return -1;
+			return HANDLER_ERROR;
 		}
 		hctx->fde_ndx = -1;
 		
@@ -656,9 +654,7 @@ static int proxy_write_request(server *srv, handler_ctx *hctx) {
 		if (-1 == fdevent_fcntl_set(srv->ev, hctx->fd)) {
 			log_error_write(srv, __FILE__, __LINE__, "ss", "fcntl failed: ", strerror(errno));
 			
-			proxy_connection_cleanup(srv, hctx);
-			
-			return -1;
+			return HANDLER_ERROR;
 		}
 		
 		/* fall through */
@@ -740,10 +736,10 @@ static int proxy_write_request(server *srv, handler_ctx *hctx) {
 		break;
 	default:
 		log_error_write(srv, __FILE__, __LINE__, "s", "(debug) unknown state");
-		return -1;
+		return HANDLER_ERROR;
 	}
 	
-	return 0;
+	return HANDLER_GO_ON;
 }
 
 #define PATCH(x) \
@@ -813,7 +809,8 @@ SUBREQUEST_FUNC(mod_proxy_handle_subrequest) {
 	if (con->mode != p->id) return HANDLER_GO_ON;
 	
 	/* ok, create the request */
-	if (-1 == proxy_write_request(srv, hctx)) {
+	switch(proxy_write_request(srv, hctx)) {
+	case HANDLER_ERROR:
 		log_error_write(srv, __FILE__, __LINE__,  "sbdd", "proxy-server disabled:", 
 				host->host,
 				host->port,
@@ -823,9 +820,17 @@ SUBREQUEST_FUNC(mod_proxy_handle_subrequest) {
 		host->usage = -1;
 		host->disable_ts = srv->cur_ts;
 		
+		proxy_connection_cleanup(srv, hctx);
+		
 		con->mode = DIRECT;
 		con->http_status = 503;
 		return HANDLER_FINISHED;
+	case HANDLER_WAIT_FOR_EVENT:
+		return HANDLER_WAIT_FOR_EVENT;
+	case HANDLER_WAIT_FOR_FD:
+		return HANDLER_WAIT_FOR_FD;
+	default:
+		break;
 	}
 	
 	if (con->file_started == 1) {
diff --git a/src/mod_setenv.c b/src/mod_setenv.c
index 8cfca42e..07df0a84 100644
--- a/src/mod_setenv.c
+++ b/src/mod_setenv.c
@@ -127,7 +127,7 @@ static int mod_setenv_patch_connection(server *srv, connection *con, plugin_data
 				PATCH(request_header);
 			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("setenv.add-response-header"))) {
 				PATCH(response_header);
-			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("setenv.environment"))) {
+			} else if (buffer_is_equal_string(du->key, CONST_STR_LEN("setenv.add-environment"))) {
 				PATCH(environment);
 			}
 		}