Optional ReadonlymaxMost pending requests held at once. The login route is unauthenticated, so
without a cap a flood of GET …/login grows the map for the whole pending
lifetime. Past the cap the OLDEST pending request is evicted — its login
fails closed and is retried — so memory stays bounded and new logins keep
working. Defaults to DEFAULT_MAX_PENDING_SAML_REQUESTS; must be
a positive integer. Rate-limit the login route as well.
Options for
MemorySamlRequestStore.Since
0.8.0