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fix(cloudfront): warn when minimumProtocolVersion is set without custom certificate #37483

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fix(cloudfront): warn when minimumProtocolVersion is set without custom certificate #37483

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10aed5f
fix(cloudfront): warn when minimumProtocolVersion is set without cust…
syukawa-dev Apr 1, 2026
6ee151d
test: add unit test for minimumProtocolVersion warning without certif…
syukawa-dev Apr 2, 2026
ec30df1
fix(cloudfront): rename shadowed variables in minimumProtocolVersion …
syukawa-dev Apr 6, 2026
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4 changes: 4 additions & 0 deletions packages/aws-cdk-lib/aws-cloudfront/lib/distribution.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -394,6 +394,10 @@ export class Distribution extends Resource implements IDistribution {
this.httpVersion = props.httpVersion ?? HttpVersion.HTTP2;
this.validateGrpc(props.defaultBehavior);

if (props.minimumProtocolVersion && !this.certificate) {
Annotations.of(this).addWarningV2('@aws-cdk/aws-cloudfront:minProtocolVersionIgnored', 'The \'minimumProtocolVersion\' property is only applicable when a custom SSL/TLS certificate is configured. Without a certificate, CloudFront uses its default security policy.');
}

const originId = this.addOrigin(props.defaultBehavior.origin);
this.defaultBehavior = new CacheBehavior(originId, { pathPattern: '*', ...props.defaultBehavior });
if (props.additionalBehaviors) {
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