The feeling when you realize the DDoS attacker is yourself because of some stupid JavaScript bug which resulted in an infinite loop which happens to make requests to your server...

I built an infinite scroll module today that loaded in more content when you scroll down. Issue was it sent a request for every pixel you scrolled.

Needless to say, many, many, many Ajax requests were sent to the server. Oops.

Holy shit firefox, 3 retarded problems in the last 24h and I haven't fixed any of them.
My project: an infinite scrolling website that loads data from an external API (CORS hehe). All Chromium browsers of course work perfectly fine. But firefox wants to be special...
(tested on 2 different devices)
(Terminology: CORS: a request to a resource that isn't on the current websites domain, like any external API)

1.
For the infinite scrolling to work new html elements have to be silently appended to the end of the page and removed from the beginning. Which works great in all browsers. BUT IF YOU HAPPEN TO BE SCROLLING DURING THE APPENDING & REMOVING FIREFOX TELEPORTS YOU RANDOMLY TO THE END OR START OF PAGE!
Guess I'll just debug it and see what's happening step by step. Oh how wrong I was. First, the problem can't be reproduced when debugging FUCK! But I notice something else very disturbing...

2.
The Inspector view (hierarchical display of all html elements on the page) ISN'T SHOWING THE TRUE STATE OF THE DOM! ELEMENTS THAT HAVE JUST BEEN ADDED AREN'T SHOWING UP AND ELEMENT THAT WERE JUST REMOVED ARE STILL VISIBLE! WTF????? You have to do some black magic fuckery just to get firefox to update the list of DOM elements. HOW AM I SUPPOSED TO DEBUG MY WEBSITE ON FIREFOX IF IT'S SHOWING ME PLAIN WRONG DATA???!!!!

3.
During all of this I just randomly decided to open my website in private (incognito) mode in firefox. Huh what's that? Why isn't anything loading and error are thrown left and right? Let's just look at the console. AND IT'S A FUCKING CORS ERROR! FUCK ME! Also a small warning says some URLs have been "blocked because content blocking is enabled." Content Blocking? What is that? Well it appears to be a supper special supper privacy mode by firefox (turned on automatically in private mode), THAT BLOCKS ALL CORS REQUESTS, THAT MAY OR MAY NOT DO SOME TRACKING. AN API THAT 100% CORS COMPLIANT CAN'T BE USED IN FIREFOXs PRIVATE MODE! HOW IS THE END USER SUPPOSED TO KNOW THAT??? AND OF COURSE THE THROWN EXCEPTION JUST SAYS "NETWORK ERROR". HOW AM I SUPPOSED TO TELL THE USER THAT FIREFOX HAS A FEAUTRE THAT BREAKS THE VERY BASIS OF MY WEBSITE???

WHY CAN'T YOU JUST BE NORMAL FIREFOX??????????????????

I actually managed to come up with fix for 1. that works like < 50% of the time -_-

I guess you could say that my speciality is cloud at scale. I’d say it chose me more than I chose it.
Looking back on it though, I think what I like about my speciality is the unique challenges it brings.
Every speciality has its own set of challenges, like tight resource limits in embedded, or client-server synchronisation in native/mobile.

The challenge of cloud at scale is throughput. Designing systems that can support 100K users making a bazillion requests a second, or a data pipeline firing events that you need to process in near real time without dropping a single one.
The real challenge of course is doing all this within a sensible budget. We have virtually infinite compute but we dont have infinite dollars to spend on it.

Its a fun problem to solve.

I just started a new job last week. Old-school sysadmin role for a pretty old-school company, but the pay is nice and the kids've gotta eat.

They gave me a windows laptop. I haven't used windows for work or as a daily driver since 2016, and now, a week into trying to make this machine work for me, I have the following observations to report.

WSL is nice. It's nice to have it installed(though actually installing it was an adventure unto itself), and to set alacritty to open my default user prompt straight into that is very nice. As terminal emulators are by far my most used piece of software, that's nice to have.

Command-line software management through powershell, winget, and chocolatey are also very nice.

I like the accessibility offered by autohotkey, though there is something of a learning curve on it. Once I get better with it, I suspect that what follows will be largely mitigated.

The Bad:
In general, Windows is janky. It feels like it's all kinda taped together without any particular cohesion in mind. As a desktop, it feels decidedly amateur, compared to the feature-mountain polish of MacOS, and especially compared to the flexibility and infinite possibilities of Linux.

Lots of screen real estate is wasted, with window decorations, and fonts that look terrible at smaller sizes, because the antialiasing of fonts is just terrible. Almost all the features I depend on in other desktops: ad-hoc searches and launches(alfred, rofi) are-- again --janky. They work, but they typically require more typing than alfred or rofi. I admit I haven't spent weeks on this problem yet, but I haven't found a workable solution yet with wox, hain, and keypirinha. Quick searches like what you get with alfred, alfred workflows, and the swiss army knife that is rofi, just aren't possible or reliable with the tools I've used so far, and most require some kind of indexing agent to fully function.

It beggars imagination that a desktop in which users are subjected to "default apps" that is purported to be acceptable for enterprise, professional use, does not have a default entry for text editor. I installed nvim-qt, and I want to use it to edit anything and everything I ever edit with text, but all too often, apps have hard-coded instructions to open text files with notepad.

I want to open certain URLs with firefox, certain ones with firefox developer edition, and others with vivaldi, and yet there is not an app available that I have seen yet in my searches that allows me to set this kind of configuration. I found one that's supposed to, but it just ignores everything I put into its config, and just opens MS Edge for everything. Jank.

Simple things take too long. Like the delay between when I laboriously hit ctrl-alt-del to bring up the login and when the actual text field appears, and the delay between that and when I want to start using the computer.

Changing some settings requires a reboot. Updating some software requires a reboot. Updating permissions on something sometimes requires a reboot. And those are all on top of the frequent requests to reboot for updates.

I would have thought Windows would have overcome most of the issues that create these problems, but it's just, as I said, amateur.

difficulty in reproducing bug behavior

think i found a solution to prevent the infinite requests being sent by a react component who's code keeps getting rerun by react's scheduler.development.js

i have no fucking clue what's going on, on top of not having any foundation in react