Deep dives, practical guides, and incident analyses from engineers who build Safeguard. No fluff, no vendor FUD — just what you need to ship secure software.
The externally_connectable manifest key decides which web pages and other extensions can message yours. Defaults, the risks and a safer setup to use.
Extension storage survives clearing browsing data, cookies on extension pages act differently, and content script storage hits the host page. Review notes.
The extension service worker is the event handler where powerful APIs live. Learn how it loads and stops, why it has no DOM, and what to check in a review.
Manifest V3 extension pages ship with a strict default content security policy. What it blocks, the minimum Chrome enforces and how sandbox pages differ.
Why dropping a column in the same release as the code change blocks rollback, and how expand and contract migrations keep every step reversible.
Exact search checks every vector and gives perfect recall. HNSW and IVFFlat trade recall for speed. What the trade means for your search index.
Write 30 real questions with known answers, measure recall at 5 and 20, and use the result to compare chunking, models and rerankers with evidence.
An ETag identifies a version of a resource. Use If-None-Match for cheap cache checks with 304, and If-Match to reject conflicting writes with 412.
A reachable result depends on where analysis starts. Learn what entry points are, how a wrong set skews results, and how to check the set your tool uses.
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