doc: add note about nghttp2 hd pair size

nodejs · Mar 1, 2022 · 7cdd834 · 7cdd834
1 parent 2f7920c
commit 7cdd834
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/doc/api/http2.md b/doc/api/http2.md
@@ -2379,6 +2379,9 @@ changes:
     serialized, compressed block of headers. Attempts to send headers that
     exceed this limit will result in a `'frameError'` event being emitted
     and the stream being closed and destroyed.
+    Note: this sets the maximum allowed size to the entire block of headers,
+    but, the `nghttp2` (the internal http2 library) has a limit of `65536`
+    to each key/value pair.
   * `paddingStrategy` {number} The strategy used for determining the amount of
     padding to use for `HEADERS` and `DATA` frames. **Default:**
     `http2.constants.PADDING_STRATEGY_NONE`. Value may be one of: