[bug #20417] 503 respose is not retryable but should be

[anonymous]

Follow-up Comment #6, bug #20417 (project wget):

While wget now supports --retry-on-http-error, using it breaks both the HTTP
spec and the intent, as wget still ignores Retry-After completely and pretty
much retries instantly in a loop, which is very bad behaviour and not
approrpiate for an automatic download tool.

Also, during the decade that this bug is old, many more sites have switched to
using 503 and Retry-After, so lacking support for this HTTP feature makes wget
very unsuitable as a well-behaved download tool for a lot of download sites.

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