http/websocket: fix mid-size frames sometimes failing to be received (f…

…ixes #140)
daurnimator · Jan 17, 2022 · 217300f · 217300f
1 parent 169c1a7
commit 217300f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/http/websocket.lua b/http/websocket.lua
@@ -241,7 +241,7 @@ local function read_frame(sock, deadline)
 	if frame.length == 126 then
 		extra_fill_unget = assert(sock:xread(2, "b", 0))
 		frame.length = sunpack(">I2", extra_fill_unget)
-		fill_length = fill_length - 2
+		fill_length = fill_length - 2 + frame.length
 	elseif frame.length == 127 then
 		extra_fill_unget = assert(sock:xread(8, "b", 0))
 		frame.length = sunpack(">I8", extra_fill_unget)