Closes #9217
Detected by OSS-fuzz Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=47767 Updated test 1274 Closes #8947
Folded header lines will now get passed through like before. The headers API is adapted and will provide the content unfolded. Added test 1274 and extended test 1940 to verify. Reported-by: Petr Pisar Fixes #8844 Closes #8899