lib/lua/nb.lua

diff --git a/lib/lua/nb.lua b/lib/lua/nb.lua
index a046e23d0229c5479678ea46a02f30089b3e06ef..4c463b043e1e6f964e4740c1329bb615baba5a7c 100644 (file)
--- a/lib/lua/nb.lua
+++ b/lib/lua/nb.lua
@@ -35,6 +35,7 @@ function nb:ngx_location_md(fheader,ffooter)
 
        local file = ngx.var.document_root .. ngx.var.uri;
        local content = self:readall(file)
+       if not content then return end
 
        local vars = {}
        -- Extract title from h1