Previous version did `require('undici')` inside a try/catch on the
theory that would let it run on both CJS and ESM. In Vite/Nitro's dev
path the helper loads as an ESM module, where `require` is undefined —
the call threw `ReferenceError: require is not defined`, the catch
block silenced it, `configured=true` still got flipped, and every
subsequent call short-circuited. Net effect: the proxy was never
installed in the very dev environment the fix was meant to repair, so
image-search kept ECONNREFUSED-ing on Openverse + Wikimedia and
landing zero filled placeholders.
Switch to a static `import { setGlobalDispatcher, EnvHttpProxyAgent }
from 'undici'`. undici is a transitive dep of h3 in this workspace
(verified resolved in node_modules), and it's also the package Node 18+
uses internally for fetch — pinning it as a direct dep on apps/web
makes the resolution intentional rather than reliant on the h3 chain.
Also swapped the hand-rolled ProxyAgent for undici's built-in
`EnvHttpProxyAgent`: it reads HTTPS_PROXY / HTTP_PROXY / NO_PROXY
itself (case-insensitive) and applies the no-proxy bypass list, which
saves us from re-implementing those rules.
Verified with both `bun -e` (workspace deps) AND a direct ESM Node
context: with HTTPS_PROXY set, `fetch(api.openverse.org/...)` now
returns 240 results for "salmon sushi" instead of the earlier
ECONNREFUSED. The "configured" guard still makes calls idempotent so
multiple endpoints can opt in without coordinating.
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