When you are using the default MIME-Type configuration and your application allows uploading files, it can be a security...
As we are slowly switching from Cucumber scenarios to RSpec feature specs, you might be tempted to write assertions like...
Web forms can be made much more usable with a few HTML attributes. Short summary: type: Tells browsers about the...
When using tmux, selecting and copying multiple lines of text can be a hassle, especially when using splits (highlighting lines...
Context and further resources Even though you can get 90% of debugging done with up to 5 basic byebug commands...
I recently noticed that better_errors allows you to to open files from within your favorite editor. However it was...
Debugging your integration tests, that run a headless Chrome inside a docker image, is tricky. In many cases you can...
It is possible to manipulate the forwarded ports of an established interactive SSH session. This is done by opening the...
A convenient way to test SNS Subscription Filter Policies is using an email address as the subscription endpoint. However, for...
Within Capybara you most certainly use the #check- and #uncheck-method to (un)check checkboxes. But there's one problem...
The rubocop binary has a few interesting flags: rubocop (using the --parallel default ) scans the current repository for linting issues...
Looking at the source code of the validates_numericality_of validator, it becomes clear that it converts the attribute in...
When you allow file uploads in your app, a user might upload content that hurts other users. Our primary concern...
Rack::SteadyETag was a Rack middleware that generates the same default ETag for responses that only differ in XOR-masked...
Every Rails response has a default ETag header. In theory this would enable caching for multiple requests to the same...
tl;dr Individual transform properties are great because they allow you to write more readable and maintainable CSS, especially when...
When you're using a third party repository on your Ubuntu or Debian system and need to find out which...
tl;dr asdf allows you to manage multiple runtime versions with a single CLI tool and is backwards compatible by...
You have an async function that rejects: async function failingFunction() { throw new Error("Something went wrong") } When you call that...
We recently encountered a problem with GlusterFS (7.x) when an application used the flock syscall on a GlusterFS path...
tl;dr The strict-dynamic source list keyword allows you to simplify your CSP policy by favoring hashes and nonces...
Sidekiq 7 adds a new feature called capsules. Use cases: a chrome queue limited to 1 for e.g. PDF processing...
In Ruby on Rails ActiveRecord::Relation#merge overwrites existing conditions on the same column. This may cause the relation to...
The linked content describes: The different color space of Oklch and RGB/HSL (HDR colors) The advantage of Oklch when you...