Index: openacs-4/packages/acs-tcl/tcl/http-client-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-tcl/tcl/http-client-procs.tcl,v
diff -u -r1.30.2.16 -r1.30.2.17
--- openacs-4/packages/acs-tcl/tcl/http-client-procs.tcl	13 Jan 2021 13:16:46 -0000	1.30.2.16
+++ openacs-4/packages/acs-tcl/tcl/http-client-procs.tcl	14 Jan 2021 14:40:33 -0000	1.30.2.17
@@ -209,15 +209,7 @@
 
     set preferred [lindex $preference 0]
 
-    if {$preferred eq "native" &&
-        [ns_info name] eq "NaviServer" &&
-        [apm_version_names_compare \
-            [regsub -nocase {rc[[:digit:]]*$} [ns_info patchlevel] {}] \
-            "4.99.15"] >= 0
-    } {
-        # Naviserver has ns_http since before version 4.99.15, but
-        # with different features and syntax that we do not want to
-        # support anymore. Fallback will be curl in these cases.
+    if {$preferred eq "native" && [acs::icanuse ns_http]} {
         return "native"
     } elseif {[util::which curl] ne ""} {
         return "curl"