Bug 201291 – [curl] Failed to load resource: Stream error in the HTTP/2 framing layer

• Component: Platform
• Status: RESOLVED INVALID

[Fujii Hironori]

[curl][MSVC] Failed to load resource: Stream error in the HTTP/2 framing layer

1. Start WinCairo MiniBrowser built by MSVC
2. Open Web Inspector and open console
3. Go to https://ja.wikipedia.org/
4. Fails to fetch some subresources as "Stream error in the HTTP/2 framing layer".

I observed this issue only with MSVC, but not with clang-cl even though both using exactly same libcurl.dll.

MSVC Release: NG
MSVC Debug: NG
Clang Release: OK
Clang Debug: OK

[Fujii Hironori]

Screenshot: https://ibb.co/6J6vKxd

[Fujii Hironori]

Created attachment 377557 [details]
curl-log.txt (failed, MSVC)

This issue can be reproduce with WinCairo WK1 MiniBrowser,
and by loading single URL.
I set the following env vars.

$env:DEBUG_CURL=1
$env:CURL_LOG_FILE = "c:/webkit/curl-log.txt"

Then, tryied to load the following URL:
https://upload.wikimedia.org/wikipedia/commons/thumb/1/13/HS_VdQ.svg/38px-HS_VdQ.svg.png

* Connection state changed (MAX_CONCURRENT_STREAMS == 128)!
* http2 error: Invalid HTTP header field was received: frame type: 1, stream: 1, name: [proxy-connection], value: [close]
* HTTP/2 stream 0 was not closed cleanly: PROTOCOL_ERROR (err 1)

[Fujii Hironori]

This can be reproduced with curl command.

curl -v -4 https://upload.wikimedia.org/wikipedia/commons/thumb/1/13/HS_VdQ.svg/38px-HS_VdQ.svg.png

* Connection state changed (MAX_CONCURRENT_STREAMS updated)!
* http2 error: Invalid HTTP header field was received: frame type: 1, stream: 1, name: [proxy-connection], value: [close]
* HTTP/2 stream 1 was not closed cleanly: PROTOCOL_ERROR (err 1)
* Connection #0 to host upload.wikimedia.org left intact
curl: (92) HTTP/2 stream 1 was not closed cleanly: PROTOCOL_ERROR (err 1)

On the other hand, curl -6 succeeded.

[Fujii Hironori]

Created attachment 377563 [details]
curl-log.txt (succeeded, Clang)

[Fujii Hironori]

(In reply to Fujii Hironori from comment #0)
> I observed this issue only with MSVC, but not with clang-cl even though both
> using exactly same libcurl.dll.

Oops. I had a mistake. I was using IPv6 enabled libcurl.dll with clang-cl builds.

This is a server issue of IPv4 wikipedia server.