I just perceived a strange networking error: duckduckgo.com does not load.
The error is on the CSS stylesheet https://duckduckgo.com/s.3a31b4d3f83e98eb7e10.css:
"Blocked by DevTools" NS_ERROR_NET_PARTIAL_TRANSFER Transferred16,99 kB (57,63 kB size)
It always transfers 16.99 kB, and it is always this file. The file loads fine with
This problem did appear recently, and the difficulty is that lots of things were changed.
So, what can make HTTP/2 to not properly load CSS (while it loads JS and PNG and other stuff of bigger size)?
The error is on the CSS stylesheet https://duckduckgo.com/s.3a31b4d3f83e98eb7e10.css:
"Blocked by DevTools" NS_ERROR_NET_PARTIAL_TRANSFER Transferred16,99 kB (57,63 kB size)
It always transfers 16.99 kB, and it is always this file. The file loads fine with
fetch or in a separate page, it is ~180kB size.This problem did appear recently, and the difficulty is that lots of things were changed.
- 13.2 p4 was installed (shoudn't matter, it doesn't look like there is anything in that would concern me)
- 2023Q4 ports were upgraded (including firefox)
- I did a cleanup on all the profile/bashrc/cshrc files, on that occasion I decided to change some
DISPLAY=:0.0toDISPLAY=hostname:0.0for manageability. This is NOT a good idea, because it makes the display traffic run through the TCP stack instead of a unix socket, and then one might see traffic like 400 MB/s appearing on lo0 for a simple webpage load (and all that may then run through at least the first rules of the firewall). But nevertheless it should work, so I left it in for now. - In fact it didn't work. Because, in 13.2 one might see this message:
WARNING: Adding ifaddrs to all fibs has been turned off by default. Consider tuning net.add_addr_allfibs if needed
That means, when you configure an iface to an address with ifconfig, a route is added for the local ip - that looks like that:
This is no longer done for additional fibs, and you have to do it yourself. And I hadn't done it for all the local ip's, so the traffic was instead sent to nexthop, and there blocked as bogus by the firewall. So I fixed that.Code:192.168.1.1 link#3 UHS lo0 - My telco has -for the second time already- done an unsolicited change in switching my uplink from ADSL to VDSL. Sunday midnight suddenly my LAN fell apart. It is all DNSSEC/DANE and chained to the root servers, so it must fall apart when the uplink is gone. The support line told me no more than that there is a change ongoing and they can't tell what it is about, I should call customer service on monday. But this time I was prepared and had another modem on the shelf that can do VDSL, and happily got online again. (Curious what happens next, VDSL is more expensive, and I didn't order that change.)
So, what can make HTTP/2 to not properly load CSS (while it loads JS and PNG and other stuff of bigger size)?
