Chrome Download Flag Issue Fix

My web application is currently triggering unwanted download-security flags in Chrome. I need someone who truly understands how Chrome evaluates file downloads, certificate chains, HTTP headers, MIME-types, and related policies so we can pinpoint the root cause and clear the warning... (Budget: ₹600 - ₹1500 INR, Jobs: Compliance, Debugging, DevOps, Microsoft Access, OpenSSL, Web Application, Web Application Audit, Web Development, Web Search, Web Security)