Recently I have started getting an error 404 for add to cart link:
/checkout/cart/add/uenc/…../product/1432/
when clicked in product view page. In category view all is fine. It seems like it is related to varnish cache as when I switch back to built in cache: redis, everything is fine.
When checking log using: varnishlog -q ‘ReqURL ~ “/checkout/cart/add/uenc/”‘
* << Request >> 1046027
- Begin req 1046026 rxreq
- Timestamp Start: 1668344268.973650 0.000000 0.000000
- Timestamp Req: 1668344268.973650 0.000000 0.000000
- VCL_use boot
- ReqStart 127.0.0.1 39790 a0
- ReqMethod GET
- ReqURL /checkout/cart/add/uenc/aHR0cHM6Ly96b3J6ZWNob3dvb3d5LWJpby00N2c/product/2488/
- ReqProtocol HTTP/1.1
- ReqHeader Host: domain.com
- ReqHeader X-Forwarded-Host: domain.com
- ReqHeader X-Real-IP: X.X.X.X
- ReqHeader X-Forwarded-For: X.X.X.X
- ReqHeader Ssl-Offloaded: 1
- ReqHeader X-Forwarded-Proto: https
- ReqHeader X-Forwarded-Port: 443
- ReqHeader Connection: close
- ReqHeader sec-ch-ua: "Google Chrome";v="107", "Chromium";v="107", "Not=A?Brand";v="24"
- ReqHeader Accept: application/json, text/javascript, */*; q=0.01
- ReqHeader X-Requested-With: XMLHttpRequest
- ReqHeader sec-ch-ua-mobile: ?1
- ReqHeader User-Agent: Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Mobile Safari/537.36
- ReqHeader sec-ch-ua-platform: "Android"
- ReqHeader Sec-Fetch-Site: same-origin
- ReqHeader Sec-Fetch-Mode: cors
- ReqHeader Sec-Fetch-Dest: empty
- ReqHeader Referer: https://domain.com/product-page
- ReqHeader Accept-Encoding: gzip, deflate, br
- ReqHeader Accept-Language: pl-PL,pl;q=0.9
- ReqHeader Cookie: form_key=6QeOlabVUpfd3blu; mage-cache-storage={}; mage-cache-storage-section-invalidation={}; mage-messages=; PHPZSSESSID=vt3v47d8np7r5cghqhkp8; form_key=6QeUpfd3blu; cookie_consent=%7B%22groups%22%
- ReqUnset X-Forwarded-For: X.X.X.X
- ReqHeader X-Forwarded-For: X.X.X.X, 127.0.0.1
- VCL_call RECV
- ReqHeader X-brotli: true
- ReqUnset Host: domain.com
- ReqHeader Host: domain.com
- ReqURL /checkout/cart/add/uenc/aHR0cHM6Ly96b3J6ZWNob3dvb3d5LWJpby00N2c/product/2488/
- VCL_return pass
- VCL_call HASH
- VCL_return lookup
- VCL_call PASS
- VCL_return fetch
- Link bereq 1046028 pass
- Timestamp Fetch: 1668344269.861477 0.887827 0.887827
- RespProtocol HTTP/1.1
- RespStatus 404
- RespReason Not Found
- RespHeader Server: nginx
- RespHeader Date: Sun, 13 Nov 2022 12:57:49 GMT
- RespHeader Content-Type: text/html; charset=UTF-8
- RespHeader Vary: Accept-Encoding
- RespHeader Last-Modified: Wed, 26 Oct 2022 22:15:05 GMT
- RespHeader Set-Cookie: form_key=6QeOlabVUpfd3blu; expires=Sun, 20-Nov-2022 12:57:49 GMT; Max-Age=604800; path=/; domain=domain.com; secure; SameSite=Lax
- RespHeader Pragma: cache
- RespHeader Expires: Tue, 13 Dec 2022 12:57:49 GMT
- RespHeader Cache-Control: max-age=0, must-revalidate, no-cache, no-store
- RespHeader X-Magento-Tags: store,cms_b,gdpr_c,theme_editor_backend_css_block,cms_b_header_cms_links,cms_b_argento_scroll_up,cms_b_footer_cms_content,cms_b_13,placeholder__4,placeholder__5,placeholder__6,placeholder__7,placeholder__8,placeholder__9,placeholder__10,p
- RespHeader X-DNS-Prefetch-Control: on
- RespHeader Link: <https://domain.com/media/logo/default/logo_c.svg>; rel=preload; as=image, <https://domain.com/static/version1668205146/_cache/merged/c217df33faa001faacedbd09307a93e4.min.js>; rel=preload; as=script
- RespHeader Report-To: {"group":"report-endpoint","max_age":10886400,"endpoints":[{"url":"https://domain.report-uri.com/r/d/csp/reportOnly/"}]}
- RespHeader Content-Security-Policy-Report-Only: font-src *.fontawesome.com maxcdn.bootstrapcdn.com fonts.gstatic.com https://geowidget.easypack24.net *.cloudflare.com *.twitter.com *.gstatic.com *.googleapis.com *.bootstrapcdn.com 'self' data: domain.com
- RespHeader X-Content-Type-Options: nosniff
- RespHeader X-XSS-Protection: 1; mode=block
- RespHeader X-Frame-Options: SAMEORIGIN
- RespHeader Content-Encoding: gzip
- RespHeader X-Varnish: 1046027
- RespHeader Age: 0
- RespHeader Via: 1.1 varnish (Varnish/7.0)
- VCL_call DELIVER
- RespUnset Age: 0
- RespUnset Pragma: cache
- RespHeader Pragma: no-cache
- RespUnset Expires: Tue, 13 Dec 2022 12:57:49 GMT
- RespHeader Expires: -1
- RespUnset Cache-Control: max-age=0, must-revalidate, no-cache, no-store
- RespHeader Cache-Control: no-store, no-cache, must-revalidate, max-age=0
- RespUnset X-Magento-Tags: store,cms_b,gdpr_c,theme_editor_backend_css_block,cms_b_header_cms_links,cms_b_argento_scroll_up,cms_b_footer_cms_content,cms_b_13,placeholder__4,placeholder__5,placeholder__6,placeholder__7,placeholder__8,placeholder__9,placeholder__10,p
- RespUnset Server: nginx
- RespUnset X-Varnish: 1046027
- RespUnset Via: 1.1 varnish (Varnish/7.0)
- RespUnset Link: <https://domain.com/media/logo/default/logo_c.svg>; rel=preload; as=image, <https://domain.com/static/version1668205146/_cache/merged/c217df33faa001faacedbd09307a93e4.min.js>; rel=preload; as=script
- VCL_return deliver
- Timestamp Process: 1668344269.861528 0.887878 0.000050
- Filters esi
- RespHeader Connection: close
- RespHeader Transfer-Encoding: chunked
- Link req 1046029 esi
- Timestamp Resp: 1668344269.863635 0.889985 0.002107
- ReqAcct 1856 0 1856 6280 171354 177634
- End
And when I check link locally, using curl:
curl -I
http://127.0.0.1:8080/checkout/cart/add/uenc/aHR0cHM6Ly96b3J6ZWNob3dvb3d5LWJpby00N2c/product/2488/
I receive HTTP/1.1 302 Found redirection to https…
I use customized varnish config but an issue is still there when default varnish config is in use and most often mobile view in chrome is affected.
I don’t know exactly when this error did start showing up, so I can’t find a root cause. Any ideas?