Latests articles and projects (sorted by the time of publication or adding to the site). In the "Projects" tab you will find more filtering options for projects.

JS errors and why concatenation is bad for devs

Right and wrong directions

In this article I want to take on a journey through bad code and show you how to defened yourself from such. Or, more importantly: I want you to know where the problem lies. I'm going to tell you how browsers execute code and why it matters. If you don't have time for full details, you might just want to skip to the end.

PWA: Detecting redirects in service workers

PWA app

Why do you need to detect redirects in a PWA page? Well a PWA is established on a specific domain. You might need to redirect to a new domain at some point. You can easily do it server side with simple commands, but as PWA is cached in a specific way it will remain on the old domain. PWA will not be able to do calls to redirected API because of CORS. And it might never move on because when your admin redirected domains you will not be able to get a new service worker either. So you need to think ahead and plan for this. But how?

Podatności w Drupalu wykorzystywane w atakach od strony Rosji

Od wczoraj wzmożone ataki na różne witryny. Nie ma co panikować, ale warto się zabezpieczyć. Stosowne ostrzeżenia wydało nawet, a właściwie podało dalej ministerstwo cyfryzacji (a właściwie jego pozostałości...). Blokady IP to jedno, ale jedno dobrze skonstruowane żądanie może położyć serwis lub pozwolić przejąć nad nim kontrolę.

How to use Tampermonkey on Firefox mobile

Mobile browsers vs browser extensions. In this article I'll provide a know how on how to use browser extensions on mobile browser such as Firefox. Specifically – how to install Tampermonkey on Firefox. Tampermonkey is the one that allows to install user scripts (custom JavaScript for websites).

Panel Groups Randomizer

Start time: 
2020-03-26
Panel Groups Randomizer logo

Panel Groups Randomizer, to aplikacja internetowa umożliwiająca losowanie grup ludzi. Teoretycznie może np. służyć do dopierania par w speed datingu. Została jednak stworzona z myślą o panelach obywatelskich. Założenia są takie, żeby jednocześnie jak najmniej osób spotkało się dwa razy oraz żeby każdy się spotkał z każdym (o ile pozwala na to liczba grup).

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IITC mobile dla FF

IITC mobile dla FF to mój zbiór pluginów dla Firefox Mobile, które zastępują aplikację IITC mobile.

Dzięki skorzystaniu z mobilnej wersji Firefoksa można między innymi korzystać z pluginów, które pobierają dane z plików i zapisują dane do plików (np. mój data-merger, czy domyślny overlay KML). Dodatkowo w Foksie o wiele prościej instaluje się pluginy (jak już się ma IITC, to wystarczy kliknąć w link i potwierdzić).

Mevo UX

Mevo UX to mój projekt poboczny, który wprowadza poprawki UX witryny Roweru Mevo (rower metropolitalny z okolic Trójmiasta). M.in. dodaje możliwość powiększania mapy i zobaczenia ile jest dostępnych rowerów w różnych obszarach.

PWA and HTTP Caching

In my previous PWA article I've covered PWA basics. In this article I will cover more complex situations where a simple Service Worker is not enough. I will also talk about differences between new Service Worker Cache and HTTP Cache and how they interact. That's because they do interact and not knowing how they work together might cause problems.

I assume you have basic knowledge of PWA and you've seen at least a basic Service Worker. If not, please read my previous article first.

From responsive website to PWA in one day

You've probably already heard about Progressive Web Apps, but just to refresh, you are simply building an application from your website. If your application is PWA compatible, users should be able to add a shortcut (link) to the app to their home screen (desktop). The app should also work to some extent off-line, which is done with a help of the Service Worker. Note that by complying with PWA rules you will improve experience for all your users! Not just for mobile users.

In this article I will talk about some basics of transforming an existing website into a PWA. I'm saying those are the basics, but in fact, within a day or two you should be able to create a fully functional PWA. You need to avoid some traps on your way, but I'll try to guide you through this minefield.

SearchAutocomplete

Start time: 
2017-12-31
SearchAutocomplete logo

SearchAutocomplete, is a WebExtension add-on for Firefox that aims to give you quick, keyword based autocomplete for your search engines. Making your address bar an effective tool again ;-). Should be a good replacement for Omnibar add-on (that worked until FF 56).

The add-on works in the address bar. Just go to the address bar and type in sa and your search engine keyword (after space). For example when you type in sa en Some in the address bar you will see a list of articles starting with "Some" from English Wikpedia.

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