Revert "http2: skip immediate parsing of payload following protocol switch"bagder/http2-upgrade-revert

This reverts commit 455a63c66f188598275e87d32de2c4e8e26b80cb.

Reported-by: Tk Xiong
Fixes #7633

1 files changed, 2 insertions, 9 deletions

diff --git a/lib/http2.c b/lib/http2.c
index 394956799..14dcf41ce 100644
--- a/lib/http2.c
+++ b/lib/http2.c
@@ -2336,15 +2336,8 @@ CURLcode Curl_http2_switched(struct Curl_easy *data,
 
   DEBUGASSERT(httpc->nread_inbuf == 0);
 
-  /* Good enough to call it an end once the remaining payload is copied to the
-   * connection buffer.
-   * Some servers (e.g. nghttpx v1.43.0) may fulfill stream 1 immediately
-   * following the protocol switch other than waiting for the client-side
-   * connection preface. If h2_process_pending_input is invoked here to parse
-   * the remaining payload, stream 1 would be marked as closed too early and
-   * thus ignored in http2_recv (following 252790c53).
-   * The logic in lib/http.c and lib/transfer.c guarantees a following
-   * http2_recv would be invoked very soon. */
+  if(-1 == h2_process_pending_input(data, httpc, &result))
+    return CURLE_HTTP2;
 
   return CURLE_OK;
 }