QUIC PROTOCOL ERROR Google chrome / ERR_QUIC_PROTOCOL_ERROR
Error code: ERR_QUIC_PROTOCOL_ERROR. This webpage is not available. The webpage might be temporarily down or it may have moved permanently to a new web address.
QUIC (Quick UDP Internet Connections) is a next generation transport over UDP, which aims to reduce latency (goal: 0-RTT connectivity overhead), deliver better multiplexing, introduce packet pacing, error correction, and more.
Source 1: Sometime, when gmail performs authentication, i am seeing this QUIC PROTOCOL ERROR. See the proof from this tweet - / 1
source 2: i am clicking the youtube notification email "congrats, your video is now on youtube', a link opening in a new tab and keeps loading, then displaying the error code 'QUIC PROTOCOL ERROR'.
Recommended: Use web debugging tools like 'fiddler' to see the web request and response, you can get some ideas. Also search google for 'quic protocol' for more details.