fix(protocol): Skip leading whitespace in read-framed-message to prevent desync

test-keys.lisp

@@ -0,0 +1,22 @@
+(require :asdf)
+(load (merge-pathnames "quicklisp/setup.lisp" (user-homedir-pathname)))
+(ql:quickload :croatoan)
+(in-package :cl-user)
+(defun main ()
+  (with-open-file (f "key.log" :direction :output :if-exists :supersede)
+    (croatoan:with-screen (scr :input-echoing nil :input-blocking nil)
+      (let* ((h (croatoan:height scr))
+             (w (croatoan:width scr))
+             (input-win (make-instance 'croatoan:window :height 1 :width w :position (list (- h 1) 0))))
+        (setf (croatoan:function-keys-enabled-p input-win) t)
+        (setf (croatoan:input-blocking input-win) nil)
+        (loop
+          (let ((ch (croatoan:get-char input-win)))
+            (when ch
+              (format f "Got: ~S (type: ~S) (code: ~S)~%" ch (type-of ch) (and (characterp ch) (char-code ch)))
+              (finish-output f)
+              (when (or (eq ch #\q) (eq ch :q))
+                (return))))
+          (sleep 0.05))))))
+(main)
+(sb-ext:exit)