Some of our clients are receiving a 304 Not Modified error and cannot look into their shopping cart. I've tried to look into cart.js or any other associated file but i cannot seem to find the issue. My collegues and I cannot simulate the problem, so it's an hard find. I have asked someone to give me the network log and it output: Request URL: https://www.kookgigant.nl/cart?section_id=cart-drawer Request Method: GET Status Code: 304 Not Modified Remote Address: 23.227.38.74:443 Referrer Policy: strict-origin-when-cross-origin Alt-Svc: h3=":443"; ma=86400 Cf-Cache-Status: DYNAMIC Cf-Ray: 874b06d33c6e0a74-AMS Content-Security-Policy: block-all-mixed-content; frame-ancestors 'none'; upgrade-insecure-requests; Date: Mon, 15 Apr 2024 09:49:37 GMT Etag: "cacheable:ec2ada8fb77c93f6de98461c96def392" Nel: {"success_fraction":0.01,"report_to":"cf-nel","max_age":604800} Powered-By: Shopify Report-To: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=E59gMyI0jCIdcMcZ%2FXjYZv9ubjzJWwYXeNYZ0tZ8%2BS03JVFQQJ%2BLJEGud2f1YY2uDnzaG5pXHOB4Bnl99%2B8WZX6X4ZfrPH0w4v07MwqLR4n9f1%2FFQ7xFxoEbxv8MyUZIroaQ"}],"group":"cf-nel","max_age":604800} Server: cloudflare Server-Timing: processing;dur=18;desc="gc:2", db;dur=5, asn;desc="1136", edge;desc="AMS", country;desc="NL", theme;desc="160843006278", pageType;desc="cart", servedBy;desc="9fcd", requestID;desc="0abc3477-f659-4384-baad-7cf539967c6e-1713174577" Server-Timing: cfRequestDuration;dur=54.999828, earlyhints Set-Cookie: keep_alive=ff8191b8-f1c6-483d-a608-b92115f49889; path=/; expires=Mon, 15 Apr 2024 10:19:37 GMT; HttpOnly; SameSite=Lax Set-Cookie: secure_customer_sig=; path=/; expires=Tue, 15 Apr 2025 09:49:37 GMT; secure; HttpOnly; SameSite=Lax Set-Cookie: localization=NL; path=/; expires=Tue, 15 Apr 2025 09:49:37 GMT Set-Cookie: cart_currency=EUR; path=/; expires=Mon, 29 Apr 2024 09:49:37 GMT Set-Cookie: _cmp_a=%7B%22purposes%22%3A%7B%22p%22%3Atrue%2C%22a%22%3Atrue%2C%22m%22%3Atrue%2C%22t%22%3Atrue%7D%2C%22display_banner%22%3Afalse%2C%22sale_of_data_region%22%3Afalse%7D; domain=kookgigant.nl; path=/; expires=Tue, 16 Apr 2024 09:49:37 GMT; SameSite=Lax Set-Cookie: _shopify_y=0e26ef17-a89b-4b43-b0f8-3eee004cd292; Expires=Tue, 15-Apr-25 09:49:37 GMT; Domain=kookgigant.nl; Path=/; SameSite=Lax Set-Cookie: _shopify_s=ccb8f765-a174-4195-9050-a89cbe152477; Expires=Mon, 15-Apr-24 10:19:37 GMT; Domain=kookgigant.nl; Path=/; SameSite=Lax Strict-Transport-Security: max-age=7889238 Vary: Accept X-Cache: hit, client X-Content-Type-Options: nosniff X-Dc: gcp-europe-west4,gcp-europe-west3,europe-west3 X-Download-Options: noopen X-Envoy-Upstream-Service-Time: 21 X-Frame-Options: DENY X-Permitted-Cross-Domain-Policies: none X-Request-Id: 0abc3477-f659-4384-baad-7cf539967c6e-1713174577 X-Shardid: 325 X-Shopid: 7304020066 X-Sorting-Hat-Podid: 325 X-Sorting-Hat-Shopid: 7304020066 X-Storefront-Renderer-Rendered: 1 X-Xss-Protection: 1; mode=block