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-rw-r--r--lib/http2.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/http2.c b/lib/http2.c
index 47583265d..b33782cc3 100644
--- a/lib/http2.c
+++ b/lib/http2.c
@@ -2026,8 +2026,10 @@ static ssize_t http2_send(struct connectdata *conn, int sockindex,
nva[i].namelen = strlen((char *)nva[i].name);
}
else {
- nva[i].name = (unsigned char *)hdbuf;
nva[i].namelen = (size_t)(end - hdbuf);
+ /* Lower case the header name for HTTP/2 */
+ Curl_strntolower((char *)hdbuf, hdbuf, nva[i].namelen);
+ nva[i].name = (unsigned char *)hdbuf;
}
hdbuf = end + 1;
while(*hdbuf == ' ' || *hdbuf == '\t')