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I'm learning jQuery and am about to write some pages using intensively that library. Now, here's my question: What happens to my web application if a user disable JavaScript? So, if JavaScript is disabled, I wonder what going to happen to all this work that relies on JavaScript? I would also suggest to investigate how popular rich web applications like GMail, Google Maps and others, handle these situations.
So, if Javascript is disabled, I wonder what going to happen to all this work that relies on Javascript? A good practice suggests designing a site not to rely on JavaScript for major functionality. At least, accessing its content in read-mode should be possible.
JavaScipt should only add interface enhancements like Ajax techniques etc. But the fallback version should always work. I feel really sad when I see a site which is completely broken without JavaScript. Why can't people use CSS to put elements in proper places? Why do they try to align elements with JavaScript even if there is no dynamics involved? The same goes for Flash sites. Once in a while a land upon a "web-design-agency" site which makes picky comments about me not allowing JavaScript.
In the "Internet Options" window select the "Security" tab. On the "Security" tab click on the "Custom level In the "Active Scripting" item select "Enable". When the "Warning! In the "Internet Options" window click on the "OK" button to close it. Click on the "Refresh" button of the web browser to refresh the page.
Mozilla Firefox In the address bar, type about:config and press Enter. Click "I'll be careful, I promise" if a warning message appears. But I guess this is a site developed by developers, for developers. I did a little housekeeping on GitHub, looking around repos and deleting old branches. For a while I genuinely forgot I was on the non-JavaScript version until I came across one little bug:.
I was unable to create an issue and add labels to it at the same time. While GitHub looks incredible — I would never have known my JavaScript was turned off — not being able to use the same key functionality as the scripted version is a bummer.
Even an ugly looking noscript site would get a higher score because functionality is more important than form. I was wrong. One of my colleagues once recommended an Accessibility for Web Design course , which I bookmarked.
I decided to take a look at it today, and laughed at the irony of the alt text:. A video? A PDF? The course itself? We as a dev community need to get better at this sort of thing.
I started this experiment with the aim of seeing how many sites are implemented using progressive enhancement. I believe this is partly down to the ever-growing popularity of JavaScript frameworks such as React, Angular, and Vue. There is a danger that more and more sites will require JavaScript to render any content at all. Luckily, it is usually possible to build your content in the same, developer-friendly way but rendered on the server, for example by using Preact instead of React.
Making the conscious decision to care about noscript gives the benefits of a core experience as outlined at the beginning of this article, and can make for a faster perceived loading time, too. It can be quite daunting to think about an application from the ground up, but a decent core experience is usually possible and actually only involves simple tweaks in a lot of cases. A good core experience is indicative of a well-structured web page, which, in turn, is usually a good sign for SEO and for accessibility.
Just the things you can actually use. Everything TypeScript, with code walkthroughs and examples. And other printed books.
Email Newsletter Your smashing email. Learn how to join the challenge. Workshop bundles for smart teams Join in and boost your skills online. How many sites use progressive enhancement in practice? Chris Ashton did an experiment to find out. Join , subscribers and get a daily digest of news, geek trivia, and our feature articles.
By submitting your email, you agree to the Terms of Use and Privacy Policy. But what is NoScript, why do so many people swear by it, and should you use it? NoScript is, essentially, a Firefox add-on that disables things like JavaScript from running on web sites you visit. So before we talk about NoScript, we should actually talk about JavaScript: the programming language that makes the web we have today possible. JavaScript is a programming language commonly used on web pages among other things.
JavaScript was initially pretty basic, and was used for things like alert boxes and menus that appeared when you hovered your mouse over elements on the page. However, JavaScript has become much more than that. Most websites use JavaScript to provide various features. There is a small but vocal subset of users that disable JavaScript.
Many of these people do so because of a perceived security benefit. There have been a few browser vulnerabilities that were exploited via JavaScript. However, this is extremely uncommon and the rare security holes in JavaScript engines have been patched very quickly. Disabling JavaScript also prevents some types of ads from loading. Disabling JavaScript may break the ability to log in, post comments, or dynamically request content, which has become incredibly common on the web today.
For example, when you perform a search on Google Images, you can keep scrolling down to view more images without having to reload the page. Google is using JavaScript to dynamically request new images and add them to the current page. When you click an image, you will see a larger in-line popup with that image. When you clicked an image, you would have to load a new page entirely. The nicer interface above requires JavaScript to make its various features work.
This is just one example—many other features on websites use JavaScript. If you disable JavaScript, you may be unable to use certain features on a website. Modern web browsers have an option to disable JavaScript entirely, just as they have the option to disable images and other web features. NoScript creates a shortcut that allows you to selectively enable JavaScript on certain websites, as opposed to blocking it everywhere.
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