Claude Code solves it

The issue is that CloudFront doesn't automatically serve index.html for directory paths like S3 website hosting does. You need to configure CloudFront with a Lambda@Edge function or CloudFront Functions to rewrite requests from /2025/08/17/ to /2025/08/17/index.html.

Here are the solutions:

Option 1: CloudFront Functions (Recommended - Simpler & Cheaper)

Create a CloudFront Function that rewrites directory URLs:

function handler(event) {
    var request = event.request;
    var uri = request.uri;

    // If URI ends with '/', append 'index.html'
    if (uri.endsWith('/')) {
        request.uri += 'index.html';
    }
    // If URI doesn't have an extension and doesn't end with '/', add '/index.html'
    else if (!uri.includes('.')) {
        request.uri += '/index.html';
    }

    return request;
}

Option 2: Update CloudFront Distribution Settings

1. In AWS Console → CloudFront → Your Distribution
2. Go to Behaviors tab
3. Edit the default behavior
4. Set Default Root Object to index.html (this only works for the root /)
5. For subdirectories, you'll still need Option 1

Quick Fix Steps:

1. CloudFront Console → Your distribution → Functions → Create function
2. Runtime: CloudFront Functions
3. Code: Paste the JavaScript above
4. Test with URI /2025/08/17/
5. Publish the function
6. Associate with your distribution's Viewer Request behavior
7. Deploy and wait ~5-10 minutes