diff --git a/src/ngx_http_lua_output.c b/src/ngx_http_lua_output.c
index 327282aabe..dca498e8cb 100644
--- a/src/ngx_http_lua_output.c
+++ b/src/ngx_http_lua_output.c
@@ -11,10 +11,12 @@
 
 static int ngx_http_lua_ngx_say(lua_State *L);
 static int ngx_http_lua_ngx_print(lua_State *L);
+static int ngx_http_lua_ngx_print_raw_header(lua_State *L);
+static int ngx_http_lua_ngx_print_raw(lua_State *L);
 static int ngx_http_lua_ngx_flush(lua_State *L);
 static int ngx_http_lua_ngx_eof(lua_State *L);
 static int ngx_http_lua_ngx_send_headers(lua_State *L);
-static int ngx_http_lua_ngx_echo(lua_State *L, unsigned newline);
+static int ngx_http_lua_ngx_echo(lua_State *L, unsigned newline, unsigned raw);
 static void ngx_http_lua_flush_cleanup(void *data);
 
 
@@ -22,7 +24,7 @@ static int
 ngx_http_lua_ngx_print(lua_State *L)
 {
     dd("calling lua print");
-    return ngx_http_lua_ngx_echo(L, 0);
+    return ngx_http_lua_ngx_echo(L, 0, 0);
 }
 
 
@@ -30,12 +32,49 @@ static int
 ngx_http_lua_ngx_say(lua_State *L)
 {
     dd("calling");
-    return ngx_http_lua_ngx_echo(L, 1);
+    return ngx_http_lua_ngx_echo(L, 1, 0);
 }
 
 
 static int
-ngx_http_lua_ngx_echo(lua_State *L, unsigned newline)
+ngx_http_lua_ngx_print_raw(lua_State *L)
+{
+    dd("calling lua print raw");
+    return ngx_http_lua_ngx_echo(L, 0, 1);
+}
+
+
+static int
+ngx_http_lua_ngx_print_raw_header(lua_State *L)
+{
+    ngx_http_request_t          *r;
+    ngx_http_lua_ctx_t          *ctx;
+
+    dd("calling lua print raw header");
+
+    lua_pushlightuserdata(L, &ngx_http_lua_request_key);
+    lua_rawget(L, LUA_GLOBALSINDEX);
+    r = lua_touserdata(L, -1);
+    lua_pop(L, 1);
+
+    if (r == NULL) {
+        return luaL_error(L, "no request object found");
+    }
+
+    ctx = ngx_http_get_module_ctx(r, ngx_http_lua_module);
+
+    if (ctx == NULL) {
+        return luaL_error(L, "no request ctx found");
+    }
+
+    ctx->headers_sent = 1;
+    
+    return ngx_http_lua_ngx_echo(L, 0, 1);
+}
+
+
+static int
+ngx_http_lua_ngx_echo(lua_State *L, unsigned newline, unsigned raw)
 {
     ngx_http_request_t          *r;
     ngx_http_lua_ctx_t          *ctx;
@@ -217,7 +256,7 @@ ngx_http_lua_ngx_echo(lua_State *L, unsigned newline)
     ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
                    newline ? "lua say response" : "lua print response");
 
-    rc = ngx_http_lua_send_chain_link(r, ctx, cl);
+    rc = ngx_http_lua_send_chain_link(r, ctx, cl, raw);
 
     if (rc == NGX_ERROR || rc >= NGX_HTTP_SPECIAL_RESPONSE) {
         return luaL_error(L, "failed to send data through the output filters");
@@ -531,7 +570,7 @@ ngx_http_lua_ngx_flush(lua_State *L)
         ctx->flush_buf = cl;
     }
 
-    rc = ngx_http_lua_send_chain_link(r, ctx, cl);
+    rc = ngx_http_lua_send_chain_link(r, ctx, cl, 0);
 
     if (rc == NGX_ERROR || rc >= NGX_HTTP_SPECIAL_RESPONSE) {
         return luaL_error(L, "failed to send chain link: %d", (int) rc);
@@ -622,7 +661,7 @@ ngx_http_lua_ngx_eof(lua_State *L)
     ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
                    "lua send eof");
 
-    rc = ngx_http_lua_send_chain_link(r, ctx, NULL/*indicate last_buf*/);
+    rc = ngx_http_lua_send_chain_link(r, ctx, NULL/*indicate last_buf*/, 0);
 
     if (rc == NGX_ERROR || rc >= NGX_HTTP_SPECIAL_RESPONSE) {
         return luaL_error(L, "failed to send eof buf");
@@ -641,6 +680,12 @@ ngx_http_lua_inject_output_api(lua_State *L)
     lua_pushcfunction(L, ngx_http_lua_ngx_print);
     lua_setfield(L, -2, "print");
 
+    lua_pushcfunction(L, ngx_http_lua_ngx_print_raw);
+    lua_setfield(L, -2, "rawprint");
+
+    lua_pushcfunction(L, ngx_http_lua_ngx_print_raw_header);
+    lua_setfield(L, -2, "rawprint_headers");
+
     lua_pushcfunction(L, ngx_http_lua_ngx_say);
     lua_setfield(L, -2, "say");
 
diff --git a/src/ngx_http_lua_util.c b/src/ngx_http_lua_util.c
index 7a8aad43f1..436f945ee6 100644
--- a/src/ngx_http_lua_util.c
+++ b/src/ngx_http_lua_util.c
@@ -84,7 +84,7 @@ static int ngx_http_lua_param_set(lua_State *L);
 static void ngx_http_lua_del_all_threads(ngx_http_request_t *r, lua_State *L,
     ngx_http_lua_ctx_t *ctx);
 static ngx_int_t ngx_http_lua_output_filter(ngx_http_request_t *r,
-    ngx_chain_t *in);
+    ngx_chain_t *in, ngx_int_t raw);
 static ngx_int_t ngx_http_lua_send_special(ngx_http_request_t *r,
     ngx_uint_t flags);
 static void ngx_http_lua_finalize_coroutines(ngx_http_request_t *r,
@@ -494,7 +494,7 @@ ngx_http_lua_send_header_if_needed(ngx_http_request_t *r,
 
 ngx_int_t
 ngx_http_lua_send_chain_link(ngx_http_request_t *r, ngx_http_lua_ctx_t *ctx,
-    ngx_chain_t *in)
+    ngx_chain_t *in, unsigned raw)
 {
     ngx_int_t                     rc;
     ngx_chain_t                  *cl;
@@ -548,7 +548,7 @@ ngx_http_lua_send_chain_link(ngx_http_request_t *r, ngx_http_lua_ctx_t *ctx,
 
             if (ctx->out) {
 
-                rc = ngx_http_lua_output_filter(r, ctx->out);
+                rc = ngx_http_lua_output_filter(r, ctx->out, raw);
 
                 if (rc == NGX_ERROR || rc >= NGX_HTTP_SPECIAL_RESPONSE) {
                     return rc;
@@ -597,7 +597,7 @@ ngx_http_lua_send_chain_link(ngx_http_request_t *r, ngx_http_lua_ctx_t *ctx,
         return NGX_OK;
     }
 
-    return ngx_http_lua_output_filter(r, in);
+    return ngx_http_lua_output_filter(r, in, raw);
 }
 
 
@@ -624,7 +624,7 @@ ngx_http_lua_send_special(ngx_http_request_t *r, ngx_uint_t flags)
 
 
 static ngx_int_t
-ngx_http_lua_output_filter(ngx_http_request_t *r, ngx_chain_t *in)
+ngx_http_lua_output_filter(ngx_http_request_t *r, ngx_chain_t *in, ngx_int_t raw)
 {
     ngx_int_t            rc;
     ngx_http_request_t  *ar; /* active request */
@@ -641,7 +641,11 @@ ngx_http_lua_output_filter(ngx_http_request_t *r, ngx_chain_t *in)
         return rc;
     }
 
-    return ngx_http_output_filter(r, in);
+    if (raw) {
+        return ngx_http_write_filter(r, in);
+    } else {
+        return ngx_http_output_filter(r, in);
+    }
 }
 
 
@@ -1462,7 +1466,7 @@ ngx_http_lua_run_thread(lua_State *L, ngx_http_request_t *r,
 done:
     if (ctx->entered_content_phase && r->connection->fd != -1) {
         rc = ngx_http_lua_send_chain_link(r, ctx,
-                                          NULL /* last_buf */);
+                                          NULL /* last_buf */, 0);
 
         if (rc == NGX_ERROR || rc >= NGX_HTTP_SPECIAL_RESPONSE) {
             return rc;
@@ -1537,7 +1541,7 @@ ngx_http_lua_wev_handler(ngx_http_request_t *r)
                        "lua wev handler flushing output: buffered 0x%uxd",
                        c->buffered);
 
-        rc = ngx_http_lua_output_filter(r, NULL);
+        rc = ngx_http_lua_output_filter(r, NULL, 0);
 
         if (rc == NGX_ERROR || rc > NGX_OK) {
             if (ctx->entered_content_phase) {
@@ -2158,7 +2162,7 @@ ngx_http_lua_handle_exit(lua_State *L, ngx_http_request_t *r,
     ngx_http_lua_request_cleanup(r);
 
     if (ctx->buffering && r->headers_out.status) {
-        rc = ngx_http_lua_send_chain_link(r, ctx, NULL /* indicate last_buf */);
+        rc = ngx_http_lua_send_chain_link(r, ctx, NULL /* indicate last_buf */, 0);
 
         if (rc == NGX_ERROR || rc >= NGX_HTTP_SPECIAL_RESPONSE) {
             return rc;
@@ -2176,7 +2180,7 @@ ngx_http_lua_handle_exit(lua_State *L, ngx_http_request_t *r,
         || (ctx->exit_code >= NGX_HTTP_OK
             && ctx->exit_code < NGX_HTTP_SPECIAL_RESPONSE))
     {
-        rc = ngx_http_lua_send_chain_link(r, ctx, NULL /* indicate last_buf */);
+        rc = ngx_http_lua_send_chain_link(r, ctx, NULL /* indicate last_buf */, 0);
 
         if (rc == NGX_ERROR || rc >= NGX_HTTP_SPECIAL_RESPONSE) {
             return rc;
diff --git a/src/ngx_http_lua_util.h b/src/ngx_http_lua_util.h
index b06c383dcf..353e2c84b9 100644
--- a/src/ngx_http_lua_util.h
+++ b/src/ngx_http_lua_util.h
@@ -97,7 +97,7 @@ ngx_int_t ngx_http_lua_send_header_if_needed(ngx_http_request_t *r,
     ngx_http_lua_ctx_t *ctx);
 
 ngx_int_t ngx_http_lua_send_chain_link(ngx_http_request_t *r,
-    ngx_http_lua_ctx_t *ctx, ngx_chain_t *cl);
+    ngx_http_lua_ctx_t *ctx, ngx_chain_t *cl, unsigned raw);
 
 void ngx_http_lua_discard_bufs(ngx_pool_t *pool, ngx_chain_t *in);