Closed Bug 1693030 Opened 4 years ago Closed 4 years ago

"Alternate Service Mapping found" spam in Browser Console

Categories

(Core :: Networking, task, P3)

task

Tracking

()

RESOLVED FIXED
89 Branch
Tracking Status
firefox89 --- fixed

People

(Reporter: evilpies, Assigned: dragana)

Details

(Whiteboard: [necko-triaged])

Attachments

(1 file)

My browser console is spammed with these messages, that honestly seem useless to me.

Alternate Service Mapping found: https://www.googletagservices.com:-1 to https://googleads.g.doubleclick.net:443
Alternate Service Mapping found: https://tpc.googlesyndication.com:-1 to https://tpc.googlesyndication.com:443
Alternate Service Mapping found: https://pagead2.googlesyndication.com:-1 to https://googleads.g.doubleclick.net:443
Alternate Service Mapping found: https://securepubads.g.doubleclick.net:-1 to https://securepubads.g.doubleclick.net:443
Severity: -- → N/A
Type: defect → task
Priority: -- → P3
Whiteboard: [necko-triaged]

I'm seeing this today. The browser console is full of these messages. Anything I should collect to help here?

Flags: needinfo?(dd.mozilla)

(In reply to Neha Kochar [:neha] from comment #1)

I'm seeing this today. The browser console is full of these messages. Anything I should collect to help here?

This message used to be rare and very useful for debuggnig. But in case of mapping to HTTTP/3 it is not that useful.
I will look into restricting when we show this message, we do not need to show it if AltSvc map only to HTTP/3 protocol and he host name stays the same.
I will write a patch.

Assignee: nobody → dd.mozilla
Status: NEW → ASSIGNED
Flags: needinfo?(dd.mozilla)

This is usually the case for HTTP/3 mapping.
The messages are useful only if a request is routed to a different domain name.

Pushed by ddamjanovic@mozilla.com: https://hg.mozilla.org/integration/autoland/rev/3e575a28a0cb Do not show AltSvc messages in the console if they are mapping to the same domain name r=necko-reviewers,kershaw
Status: ASSIGNED → RESOLVED
Closed: 4 years ago
Resolution: --- → FIXED
Target Milestone: --- → 89 Branch
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