I checked the headers. This answer is cached.
age: 72
cache-control: max-age=600
x-cache: HIT
x-cache-hits: 2
I once had a problem that wasn't caused by chaching.
It was caused by cache invalidation.
There are two hard problems in computing, naming things, cache invalidation, and off by one errors.
I once had a problem that wasn’t caused by caching. It was caused by Accounts Payable forgetting to pay the internet bill, and the ISP cutting our service halfway through a network test. So the beginning of the test cached that the network had internet access, but then the end of the- wait fuck it was caused by caching
I can't be the only one who has wasted half an hour wondering why something wasn't working before realising the response was cached.
Only a half hour? Amateur.
nah, it's dns.
Step 1. I'm certain it's caching
Step 2. After evaluating all the caches, it's definitely not caching.
Step 3. oooohhh, it's not ram caching, it's file caching
Step 4. I checked all those files, they're definitely not caching anything unsafe.
Step 5. Oh, it's the other files that are caching.
As long as you aren't blaming "the network" or "the firewall" without cause.
Now if only there's one for off-by-one errors!
Believe it or not, still DNS
Usually I do my best to blame the network with cause!
Just because your bowser is not caching does not mean something else between you and the server is not caching as well.
thought it was obvious, but clearly /s
I made a game where you battle the NSA and other stuff once
I hear NSA is creating an eight-dimensional KOSANET that scrapes the information from top-secret backdoors in your IDEs to be sent to this marvelous website's server-side caching.
I'm currently at the other end of this, in that I'm trying to implement caching for a build tool. And yeah, I do expect to be in for a world of pain.
Biggest problem is that you cannot do caching correctly, unless you know all the inputs upfront. If the user decides they'll use the CPU temperature while building their distribution artifact without telling you about it, you're fucked.
Or well, the user is fucked. Because their CPU temp will not update and they'll never be told about it.
So, the user needs to tell you about every single input, which makes it extremely verbose. I guess, that's why so many build tools have their own custom APIs rather than using file APIs from the stdlib, because it allows you to register e.g. paths as an input, wherever they're created...
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