Warnings and errors are spammed in the Console when pinging localhost:34999 making it harder to debug

Unity: Web Platform

As Designed

2023.1.X

2022.2.X

2022.1.X

2021.3.X

2020.3.X

Opening a browser against the player connection port used by the browser is not a supported scenario - it makes no sense to do this. The player connection does not interpret HTTP web requests. We need to review the ISS customer's issue here, because it's not reflected in this bug.

Reproduction steps:
1. Open the “EmptyProject” or any Unity project
2. Open http://localhost:34999/ in a web browser
3. Observe the Console in the editor

Expected result: No warnings nor errors are logged
Actual result: Warnings and errors are logged

Warning: Sending message header failed (35)
Error: The message header is corrupted and for security reasons connection will be terminated

Reproduced in: 2020.3.37f1, 2021.3.7f1, 2022.1.10f1, 2022.2.0b2, 2023.1.0a4

Reproduced on: Windows 11, macOS Monterey 12.0.1

Note: 2020.3 reproduced the errors, but not the warnings

Warnings and errors are spammed in the Console when pinging localhost:34999 making it harder to debug

Unity: Web Platform

As Designed

Prioritise and Follow this issue

Have a workaround or additional info about this issue?

Warnings and errors are spammed in the Console when pinging localhost:34999 making it harder to debug

Unity: Web Platform

Statuses

As Designed

Resolution Notes

Description

Prioritise and Follow this issue

Have a workaround or additional info about this issue?