My 5th book "50 Tips on JavaScript" is on sale. Go get it from https://50tips.dev.
Illustrated guide to 50 of the most interesting JavaScript topics.

widget

iframe, or not, that is the question

One of the things that I really like at work is the fact that we spend time in research tickets. We have unknowns and we make a research to find out more information on particular topic. We then base our decisions on the results. Recently we had to decide whether to use an <iframe> for a third party widget development. I feel that the collected information may be handy to someone else so I decided to write it down here.

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Here is how call-to-action widgets probably work

Did you ever wondered how the call-to-action widgets work? You know, those little buttons for sharing content in the social networks. Very often they are distributed as iframes but sometimes we have to copy/paste script tags. And the instructions are "Place the following code where you want the button to appear". But if that's a script tag how it knows where to inject the button? The goal of this article is to give you an answer on this question.

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