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Issue HTTP/3 enable for panel redirects to localhost when changing E-Mail password

andreios

Regular Pleskian
Server operating system version
Ubuntu 22.04
Plesk version and microupdate number
18.0.61 #3
I tried to change the password for an E-Mail (the admin E-Mail).
But after pressing 'OK' it redirected to this:
Code:
https://localhost:8443/smb/email-address/list/domainId/3
The password was changed anyway.
I checked if HTTP/3 is enabled:
Code:
plesk bin http3_pref --status
HTTP/3 is enabled for nginx
But I was sure I had enabled it for both -nginx and -panel. So I disabled HTTP/3 for panel. After disabling, I tested it again, no problems.
Probably the HTTP_HOST variable?
 
Can't comment on the e-mail aspect, as it's not something we've needed to do but, the initial question about the results of the "status" query has been raised before / answered before in amongst this post: Resolved - http/3 supported by plesk?

However, that ^^ was before Plesk encountered issues with MFA / Cloudfare etc (see several separate threads) which, has resulted in some 'temporary changes' by Plesk. Brief details and a link to the Plesk changes is here: Resolved - http/3 supported by plesk?
 
@andreios thank you for pointing that out. After the issues with HTTP/3 we're considering it an experimental feature. HTTP/3 support is disabled by default for all new installations now. Because it's experimental I would recommend not using it for the Panel and with caution for websites.
 
I have the same issue, something is wrong enabling HTTP 3 and Plesk panel, it redirects to "localhost:8443" this happens to me when I click on extension Cloudflare to manage DNS.

Did you found a solution @andreios ?
 
I have the same issue, something is wrong enabling HTTP 3 and Plesk panel, it redirects to "localhost:8443" this happens to me when I click on extension Cloudflare to manage DNS.

Did you found a solution @andreios ?
FWIW Plesk Panel HTTP/3 was disabled by Plesk, by default in 18.0.61 mu3 > https://docs.plesk.com/release-notes/obsidian/change-log/#plesk-18061-mu3

However, it continues to be supported for all hosted sites. You can verify this via the CLI & Curl or even the Plesk Panel itself (Panel.ini Extention). We have zero issues with HTTP/3 in it's current Plesk config, works perfectly for us, but we don't use Cloudfare at all, so that might a factor in your case, maybe?
 
I have the same issue, something is wrong enabling HTTP 3 and Plesk panel, it redirects to "localhost:8443" this happens to me when I click on extension Cloudflare to manage DNS.

Did you found a solution @andreios ?
No, no change. I still happen to me too if I try to enable it for panel. Seems they don't work on currently.
 
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