jQuery"s jquery-1.10.2.min.map is triggering a 404 (Not Found)

Where did that min.map file go? 🤔

So you're seeing error messages about a file called jquery-1.10.2.min.map triggering a 404 error, which means it's not being found. But what exactly is this file and why is it causing you trouble? 🤔

What is the jquery-1.10.2.min.map file?

The jquery-1.10.2.min.map file is called a source map. It's a file that helps developers debug minified JavaScript files. Minification is the process of reducing file sizes by removing unnecessary spaces, line breaks, and renaming variables to shorter names. It makes the file more efficient and quicker to load. However, minified files are much harder to read and debug because they lack meaningful variable names and readable formatting. That's where source maps come in handy!

Why is it triggering a 404 error?

When you include jQuery's minified version (jquery-1.10.2.min.js) in your project, it often looks for a corresponding source map file (jquery-1.10.2.min.map). This source map file is referenced within the minified JavaScript file itself. However, if the source map file is missing or not located in the specified path, it triggers a 404 error, indicating that the file can't be found.

How to fix the jquery-1.10.2.min.map 404 error:

Here are a few simple solutions you can try:

1. Disable source map support

If you don't need source map support and don't want to see those 404 errors, simply remove the reference to the source map file by changing the script tag from:

<script src="jquery-1.10.2.min.js"></script>

to:

<script src="jquery-1.10.2.js"></script>

Make sure you're using the non-minified version (jquery-1.10.2.js). Just remember that the non-minified version will be larger in size and may take slightly longer to load.

2. Provide a working source map file

If you do want to use source maps for debugging purposes, make sure the jquery-1.10.2.min.map file is present in the correct location. It should be in the same directory as your minified JavaScript file (jquery-1.10.2.min.js). Double-check that the file name and file extension are correct as well.

3. Update your source map reference

If you have manually moved the source map file to a different location, or if your project structure has changed, you'll need to update the reference to the source map file within the minified JavaScript file. Open the minified file with a text editor and look for a line that starts with //@ sourceMappingURL=. Ensure that the path is correct based on the new location of the source map file.

Share your experience! 🤩

We hope these solutions help you fix the jquery-1.10.2.min.map 404 error! If you have any other ideas or questions, feel free to leave a comment below. Your feedback is valuable to us and might help others facing the same issue. Don't hesitate to share this article with fellow developers who might find it useful! 👍