1 files changed, 11 insertions, 0 deletions
diff --git a/render.f90 b/render.f90
index c8f1333..97458e0 100644
--- a/render.f90
+++ b/render.f90
@@ -45,6 +45,7 @@ implicit none
         procedure::render_proportional
         procedure::type_supported
         procedure::status_ready
+        procedure::report_unsupported_protocol
         
         procedure(initialize), deferred::initialize
         procedure(prepare_for_layout), deferred::prepare_for_layout
@@ -239,6 +240,16 @@ contains
         
     end subroutine status_ready
     
+    subroutine report_unsupported_protocol(self, url)
+    implicit none
+    
+        class(renderer)::self
+        character(*), intent(in)::url
+ 
+        call self%draw_error("Only gemini:// URLs supported ("//url//")")
+        
+    end subroutine report_unsupported_protocol
+    
     function width_of_line(r, text, startpos, endpos, heading_level, list_item)
     implicit none