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cloudflare / lua-resty-cookie

Lua library for HTTP cookie manipulations for OpenResty/ngx_lua
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ngx.header.HEADER #16

Closed shubenkov closed 7 years ago

shubenkov commented 8 years ago

When I try to set cookie:

2016/07/11 10:44:43 [error] 19243#0: *272 attempt to set ngx.header.HEADER after sending out response headers, client: 5.61.237.205, server: localhost, request:

agentzh commented 8 years ago

@shubenkov The error message is clear that you try to set the cookie (which is a special response header) after your whole response header is already sent. You would need a "time machine" to add a response header when the whole header is sent out to the client.

Be aware that ngx_lua uses non-buffered output mode by default, which means if you try to send some response body data (via ngx.print or ngx.say, for example), the response header is automatically sent out first at that point.