I need a clarity about Cloudflare Security Measurements
I’m currently building a notification service that the task is to send emails, send sms, send push notification, whatsapp, etc.
but my problem lays when I try to implement API for sending emails. if i send an escaped HTML in the JSON, I sometimes receiving 403 Forbidden with the HTML like shown on the picture. I already done several things to make a workaround for this issue but found an interesting findings.
- Long HTML (> 5KB) : 403 Forbidden
- Short HTML (< 1KB) : 200 OK
- Long Base64 (> 5KB) : 200 OK
- Short Base64 (< 1KB) : 200 OK
- Long Plain Text (> 5KB) : 200 OK
- Short Plain Text (< 1KB) : 200 OK
it seems only long html that gives me 403 forbidden, is there any security measurements that I trigger, regarding this matters?
