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Show HN: Flashbang – DuckDuckGo bangs resolved locally with a Service Worker

18 points by t3ntxcles

by canary-digital

1 subcomments

This is a wonderfully elegant use of Service Workers. Intercepting the request at the browser level to do instant local routing instead of waiting for a round-trip to the search provider is one of those 'why didn't I think of that' hacks.
Quick question on the implementation: How are you managing the storage and lookup for the 14,000+ bangs? Are they just bundled as a static JSON in the SW payload, and does that have any noticeable impact on the browser's memory footprint when the Service Worker activates?

by Sayrus

1 subcomments

I always found redirects to be wasteful on mobile connections where latency and packet losses are frequent.
Interestingly Firefox, I get latency that are way worse than Chromium (Median 0.46ms vs 1.2ms, P99 1.3ms vs 1.8ms).

by sunnybeetroot

1 subcomments

Wow this is excellent, I wish bangs were part of the web spec and all browsers supported it client side. It could work like unlock origin and its filter lists so the websites aren’t coupled and instead are dynamic.

by Void_Null

0 subcomment