Less.js Not Working in Chrome: Is It a File Protocol Issue?

Less.js Not Functioning in Chrome: Is It a Mistake?

You have discovered an apparent discrepancy in the functionality of Less.js in different browsers. While it operates seamlessly in Firefox, you encounter issues in Chrome. Before assuming a mistake on your part, let's examine the issue and its potential cause.

less.js Implementation

Your code snippet includes the necessary CSS and Less.js scripts. You have defined Less variables and implemented them in elements like .grad and html. However, despite the valid syntax, it fails to function in Chrome.

Chrome's File Protocol Limitation

A significant detail to consider is the path to your HTML page. If it begins with "file:///," Less.js will not execute correctly in Chrome. This is due to a known issue with Chrome's handling of the file protocol. Chrome restricts inline scripts and external resources from being loaded from the local file system, which includes Less.js.

Impact of Local File Path

The path to your HTML page plays a crucial role in Less.js functioning. Chrome's file protocol limitation prevents Less.js from operating correctly when the page is accessed locally. It may work in Firefox because Firefox handles the file protocol differently.

Solution

To resolve the issue, you can either host your page on a web server or use a development tool that allows inline scripts and external resource loading from the local file system. Alternatively, you can consider using a different CSS preprocessor that supports local file development.

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