web.config: Force browsers to re-validate redirects (HTTP 301 and HTTP 302). Useful when a redirect has changed or been removed.

web.config

<configuration>
	<system.webServer>
		<rewrite>
			<outboundRules>
				<rule name="Require clients to re-validate redirects">
					<match serverVariable="RESPONSE_Cache_Control" pattern=".*" />
					<conditions logicalGrouping="MatchAny">
						<add input="{RESPONSE_STATUS}" pattern="301" />
						<add input="{RESPONSE_STATUS}" pattern="302" />
					</conditions>
					<action type="Rewrite" value="public, must-revalidate, max-age=0" />
				</rule>
			</outboundRules>
		</rewrite>
	</system.webServer>
</configuration>