JavaScript is not Working in Safari: 3 Ways to Fix it

Fix JavaScript in Safari on iOS and macOS

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Key notes

  • JavaScript may not work correctly on Safari for various reasons like third-party extensions and browser incompatibility.
  • This problem may appear even if you have enabled JS from the Safari settings.
  • Though you can disable some extensions to solve this problem, you will also need to follow other methods from this article as well.
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Is JavaScript not working on Safari? If you are a Mac or iPhone/iPad user and facing this problem, this article can help you to fix it.

Safari is the default browser in the Apple ecosystem. Whether you are on macOS or iOS, Safari is the first browser. A large number of people rely on this application as it serves their purpose pretty well. If you are interested, learn how to use Safari on Windows.

Even though Chromium-based browsers like Opera One, Edge, or Chrome are much more powerful, you may rely on Safari due to its minimalistic aesthetic design, performance on low-end Macs, tight integration with iPhones and iPads, etc.

But, the problem begins when you face problems related to the JavaScript on this browser. This article will help you to solve any JS-related issues on Safari.

Quick Tip:

You can consider using a different web browser if the problem repeats itself. For this, we suggest Opera One, a very lightweight and fast browser with a lot of privacy and security settings.

Being based on Chromium, it is more compatible and robust than Safari. Opera One is available on both macOS and iOS, with the capacity of translating JavaScript language more accurately.

Opera One

Underneath settings is a section that lets you always block or allow Javascript for certain websites.

Is JavaScript disabled on Safari?

By default, Safari and all other modern web browsers keep JavaScript enabled. In fact, JS is an essential component of any modern website.

If there is no JS, we would see less functional, less user-friendly websites out there.

Why is JavaScript not working in Safari?

If JavaScript doesn’t work on Safari, then there is something wrong. We have found the following reasons why JavaScript may not work on this browser:

  • Someone may have disabled JavaScript from the settings
  • The third-party extension may be causing the problem
  • JS file may not be loaded due to an internet connectivity issue
  • Outdated version of Safari

How do I make sure JavaScript is enabled?

On macOS:

  1. Open Safari.
  2. Press Command + , on the keyboard.
  3. Go to the Security tab.
  4. Check if Enable JavaScript is ticked or not.enabling javascript safari desktop
  5. If not, tick it to enable JS.

On iOS:

  1. Open the Settings app on iPhone or iPad.
  2. Go to Safari and scroll down and go to Advanced.going advanced safari settings ipados
  3. Make sure the switch next to JavaScript is enabled.enabling javascript safari ios

You may notice that JavaScript is enabled on Safari, but it is not working. If it happens to you, the methods mentioned below will solve the problem.

How do I fix JavaScript on Safari?

1. Disable third-party extensions

1.1 Disable third-party extensions on macOS

  1. Open Safari.
  2. Press Command + , to go to Safari preferences.
  3. Go to the Extensions tab and untick the extensions you want to disable.disabling extensions safari desktop browser

1.2 Disable on iOS

  1. Go to Safari Settings.
  2. Tap on Extensions.going extensions safari ios
  3. Toggle the switch off the extensions you want to disable.disabling extension safari ios

Last year, Apple brought extension support for Safari on both iPhone and iPad. Disabling some like ad script blockers may fix JavaScript not working on Safari on iPad or iPhone.

2. Clear browsing data

2.1 On macOS

  1. Go to Safari preferences.
  2. Go to the Privacy tab and click on Manage website data.clicking manage website data safari settings desktop
  3. Click on Remove all.removing safari browsing data mac

2.2 On iOS

  1. Go to Safari Settings.
  2. Tap on Clear History and Website Data.clearing browsing data safari settings ios

Clearing browsing data will not only fix the problem on macOS but also fix JavaScript not working issue on iPhone.

3. Update Safari

3.1 Update on Mac

  1. Click on the Apple icon on the menu bar and go to About This Mac.going about this mac
  2. Click on Software Update.clicking software update mac
  3. It will check for new updates and prompt if anything available.
  4. Install any available updates.

On older macOS, Safari gets an update with the OS. However, on any version of modern macOS, Safari gets separate updates.

3.2 Update on iPhone/iPad

  1. Go to iOS Settings.
  2. Go to General and tap on Software Update.going software update iPadOS

Updating the browser as well as the macOS and iPad OS will both help to get rid of JavaScript-related issues on Safari.

These are the best ways to fix javascript not working in Safari. You can share any other methods in the comment box that can help others.

More about the topics: Browser errors, Safari Browser