More thoughts on auth-header parsing noted

sentry/utils/auth.py

@@ -1,11 +1,21 @@
 def _make_key_value(val):
+    # strip, and then split on '='
     return val.strip().split("=", 1)
 
 
 def parse_auth_header(header):
+    # KvS: isn't this always either bytes or strings? I'd like to learn more (first quickly, and then formalizing for
+    # actual uses)
+    # https://github.com/getsentry/sentry/pull/12108 is the non-explanation
     if isinstance(header, bytes):
+        print("it's bytes, probably always so")
         header = header.decode("latin1")
+    else:
+        print("not bytes, already a string")
+
     try:
+        # the the RHS of the header (question: what's left of the space), split it on "," and put the x=y pairs into a
+        # dict as key-values
         return dict(map(_make_key_value, header.split(" ", 1)[1].split(",")))
     except Exception:
         return {}