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Learn how to fix redirect loops in `.htaccess` by properly configuring your rewrite rules and conditions to avoid the `ERR_TOO_MANY_REDIRECTS` issue.
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How to Stop the ERR_TOO_MANY_REDIRECTS Issue in .htaccess Files

When managing a website using Apache, you might encounter issues with your URL rewrite rules leading to an ERR_TOO_MANY_REDIRECTS. This problem is especially common when working with .htaccess files and the mod_rewrite module. In this guide, we will examine a specific situation related to language-based URL redirects and how to effectively resolve the redirect loop issue that can arise.

The Problem

You may have a set of rules in your .htaccess file that handle language codes in URLs. The intention is to redirect users to a default language (like /it/) if they do not specify one in the URL. However, if your redirect rules are not correctly configured, Apache might end up redirecting continuously, causing an infinite loop. When this happens, you’ll receive an error message that looks something like this:

[[See Video to Reveal this Text or Code Snippet]]

Existing Configuration and Issue

Consider the original configuration you might have used in your .htaccess:

[[See Video to Reveal this Text or Code Snippet]]

What Went Wrong?

In the configuration above, the first rule captures language-specific URLs correctly. The second rule is intended to redirect any URL that does not start with /it/. However, it leads to an infinite loop because once the URL is rewritten to start with /it/, the first rewrite rule strips /it/ from the URL again. This causes the loop: the rewritten URL keeps triggering the redirect rule.

How to Fix the Redirect Loop

To solve this issue, follow these steps:

1. Reorder Your Rules

Order matters in .htaccess files. By checking specific conditions before applying a broad redirect, you can avoid mistakenly redirecting URL requests repeatedly.

2. Use THE_REQUEST Instead of REQUEST_URI

Using THE_REQUEST helps ensure that you are checking the original request made by the client, rather than a rewritten version. This helps in identifying requests accurately.

3. Skip Specific Conditions

Make sure to account for all possible cases or specific terms in your redirect conditions that you might want to exclude, like a specific product page.

Updated .htaccess Configuration

Here’s a refined version of your .htaccess file that should resolve the redirect loop issue:

[[See Video to Reveal this Text or Code Snippet]]

Breakdown of the New Rules:

The Rewrite Condition: This checks if the original request does not contain /it/ or /catalogue-men/, allowing for specific paths to bypass the redirect.

First Rewrite Rule: Redirects any request without a language code to the default language path, ensuring it only executes when necessary to prevent further looping.

Existing Language Rewrite: Maintains your current URL structure for language-specific requests without causing any issues.

Conclusion

Managing redirects efficiently in .htaccess is crucial for maintaining user experience and avoiding frustrating error messages like ERR_TOO_MANY_REDIRECTS. By carefully organizing your rewrite rules and conditions, you can ensure that your website's traffic flows smoothly without unnecessary redirects.

Now you can implement this configuration and enjoy a seamless experience for your site visitors. If you encounter any other challenges, feel free to explore further or reach out for more guidance.