HTTPS Mixed Content Warning, How to Resolve
A mixed content warning means a page served over HTTPS is loading at least one resource (an image, script, stylesheet, or API call) over plain HTTP — browsers...
Category
Cybersecurity / Networking
Practical fixes for authentication errors, API security issues, and network debugging basics.
Rate Limiting an API Correctly, Common Mistakes
Rate limiting looks simple on the surface — count requests, block when a threshold is exceeded — but several common implementation mistakes either leave the...
Session Hijacking, Practical Prevention Basics
Session hijacking means an attacker obtains a valid session identifier belonging to another user and uses it to impersonate them, without needing to know their...
SQL Injection in a Parameterized Query, Is It Still Possible
Parameterized queries eliminate the classic SQL injection vector, where user input is concatenated directly into a query string — but they don't make injection...
API Returning 401 With Valid Bearer Token
When an API returns 401 Unauthorized despite a token that looks correct and unexpired, the issue is almost always in how the token is being sent or read, not...
Burp Suite Not Intercepting HTTPS Traffic
When Burp Suite intercepts plain HTTP traffic fine but HTTPS requests fail, hang, or simply never appear in the proxy history, it's almost always because the...
"Connection Reset" Testing API With Burp Proxy
A "connection reset" specifically while routing API requests through Burp usually means the TLS handshake between Burp and the target server is failing —...
CORS vs CSRF, What's the Actual Difference
CORS and CSRF get confused constantly because they both involve cross-origin requests and both show up in the same part of the stack — but they solve...
JWT Token Expired But Still Being Accepted
If a JWT with a clearly expired timestamp is still being accepted by your API, the token itself isn't the problem — your validation logic is either not...