Software⏱️ 3 min read📅 2026-06-04

How to Fix: Chrome Uncaught Syntax Error: Unexpected Token ILLEGAL

Learn how to fix: Chrome Uncaught Syntax Error: Unexpected Token ILLEGAL.

Quick Answer: Try checking your system settings or restarting.

📋 Table of Contents

  1. 💡 Why You Are Getting This Error
  2. 🛠️ Step-by-Step Verified Fixes
  3. 🎯 Final Words

When using Chrome, you may encounter an error message stating 'Uncaught Syntax Error: Unexpected Token ILLEGAL' when trying to load a script file on a webpage. This issue only affects Chrome and not other browsers like Firefox.

This error is usually caused by a syntax mistake in the JavaScript code, which can be difficult to identify, especially for those who are new to coding or web development.

💡 Why You Are Getting This Error

  • The primary cause of this error is an invalid or missing closing bracket (or semicolon) at the end of the JavaScript file.
  • This mistake can occur when the developer forgets to add a closing bracket or semicolon at the end of the script, causing Chrome to interpret the code as incomplete and throw an error.

🛠️ Step-by-Step Verified Fixes

Inspecting the Code Manually

  1. Step 1: Open the JavaScript file in a text editor or IDE.
  2. Step 2: Carefully review the code for any missing closing brackets (or semicolons) at the end of the script.
  3. Step 3: Check that all variables, functions, and loops are properly defined and closed.
  4. Step 4: Verify that there are no syntax errors or typos in the code.

Using a Code Inspector

  1. Step 1: Use the Chrome Developer Tools to inspect the JavaScript file.
  2. Step 2: Click on the 'Sources' tab and find the line of code where the error occurs.
  3. Step 3: Check that the closing bracket (or semicolon) is present at the end of the line.
  4. Step 4: If necessary, add a closing bracket or semicolon to fix the syntax error.

🎯 Final Words

To resolve the 'Uncaught Syntax Error: Unexpected Token ILLEGAL' issue in Chrome, inspect the JavaScript file manually and check for any missing closing brackets (or semicolons) at the end of the script. Alternatively, use the Chrome Developer Tools to identify and fix the syntax error.

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