For HEAD request, only quit after we send the new line that ends the headers section. This was making nginx unhappy. Thanks arg for reporting, tracking it down and fixing this bug!

bin/werc.rc

@@ -123,13 +123,13 @@ fn werc_exec_request {
     for(h in $extraHttpHeaders)
         echo $h
     echo 'Content-Type: '^$http_content_type
-    if(~ $REQUEST_METHOD HEAD)
-        exit
     echo # End of HTTP headers
 
     if(! ~ $#debug 0)
         dprint $"SERVER_NAME^$"REQUEST_URI - $"HTTP_USER_AGENT - $"REQUEST_METHOD - $"handler_body_main - $"master_template
 
+    if(~ $REQUEST_METHOD HEAD)
+        exit
     
     template $headers $master_template | awk_buffer
     echo $res_tail