Today we are going to enter the world of web development with a tutorial that can help us diagnose problems of accessibility and usability in web pages. Specifically, we will talk about
Many of you will ask yourself what it may be like to
, since in principle it could cause a web page to malfunction. This is partly true, but we will see it in detail throughout the tutorial.
is a programming language that has gained a special role in recent years. This has been due to the emergence of environments such as
tag is used. At this point, I would like to remember a tutorial in which we show how to use
async and defer in WordPress to improve performance
Now that we have a base, we can answer the question of
. The reasons may be several, but the most common are:
Take a test of accessibility and usability of a web design.
Block advertising or tracking elements that compromise our privacy when browsing.
Protect yourself from vulnerabilities and malicious techniques that use this language.
The best example is the recent news from websites that take advantage of their visitors for the mining of cryptocurrencies in browsers.
advertising blocker such as uBlock Origin or Adblock Plus
(also available for Google Chrome)
If you are looking for a
, then it is best to continue reading the options that we show below.
The FireFox browser has a well-known extension called
Mozilla addons page
If we are developers and we want
, it is best to use the developer tools with the keyboard shortcut
Ctrl + Shift + C
Then click on the gear icon in the upper right of the developer toolbox and select the option
"Advanced settings" section
and then we look for the
option to change its value to
First of all we have the option of using some extension, but
in the case of Chrome
NoScript is not available
, so we will have to use an alternative such as
and we disable it. We can reach this options panel quickly if we write in the address bar