CDN caching issue involving Cloudfront and Cloudflare

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Neeto customers experienced long page load times due to a CDN caching issue. The problem involved a complex setup with React.js assets hosted on CloudFront and Cloudflare as the DNS resolver. Investigation revealed that Cloudflare was caching content unexpectedly, interfering with the proper delivery of asset files. The issue was difficult to reproduce since it only affected certain customers, requiring detailed debugging of the CDN chain between the browser, Cloudflare, and CloudFront.