What Causes the net::ERR_HTTP2_PROTOCOL_ERROR in Chrome and How Can I Fix It?

net::ERR_HTTP2_PROTOCOL_ERROR: A Guide to Causes and Solutions

The net::ERR_HTTP2_PROTOCOL_ERROR is an issue that has plagued Google Chrome users when accessing HTTPS websites. This enigmatic error, primarily affecting Chrome version 75 users, manifests as a failure to load web pages, accompanied by a conspicuous absence of JavaScript execution.

Potential Causes and Troubleshooting:

One possible culprit lies in the header information exchanged between the client and server. A server response with a 200 status code (indicating success) may trigger the error in Chrome if there is a disconnect between the header and the subsequent page load. However, this issue typically does not arise on other browsers like Edge or Firefox.

Further analysis revealed that the error is more likely to occur when a 404 error (indicating a non-existent page) is replaced with a 2XX server response. This suggests a correlation between the header status code and the error occurrence.

Server-Side Issues:

Inspecting the server responses using curl and netlog-viewer tools has unveiled a pattern of RST_STREAM events. This behavior hints at an abrupt termination of the request-response cycle, possibly initiated by the client or server. When the browser detects such interruptions, it may perceive them as HTTP2 protocol errors and display the familiar net::ERR_HTTP2_PROTOCOL_ERROR message.

Client-Side Considerations:

While it is tempting to blame the browser entirely for this behavior, the exact cause may lie in the way the specific web page interacts with the HTTPS protocol. Disabling JavaScript or changing the page content can sometimes prevent the error from appearing.

Resolution:

While the precise cause of this error remains elusive, one common solution has emerged: ensuring sufficient disk space on the web server. For instance, it has been observed that when a web server runs out of disk space, it can lead to these HTTP2 protocol errors manifesting in Chrome. Resolving the space constraint has alleviated the issue in certain situations.

The above is the detailed content of What Causes the net::ERR_HTTP2_PROTOCOL_ERROR in Chrome and How Can I Fix It?. For more information, please follow other related articles on the PHP Chinese website!