fix(custom-resources): bad payload deserialization#26797
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When `AwsCustomResource` was updated to use sdkv3, it wasn't updated to correctly handle the change in returned value when calling `lambda.invokeFunction`. The payload property was changed from type `Buffer` to `Uint8Array` to increase compatibility in browsers. Added a check in the `flatten` function used to format payloads in `AwsCustomResource`'s runtime to correctly decode values if they are a typed array or a buffer. Created a new integ test which fails to deploy if the payload property is not serialized correctly and able to be made a Cfn output. Fixes: #26730
rix0rrr
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Aug 18, 2023
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When
AwsCustomResourcewas updated to use sdkv3, it wasn't updated to correctly handle the change in returned value when callinglambda.invokeFunction. The payload property was changed from typeBuffertoUint8Arrayto increase compatibility in browsers.Added a check in the
flattenfunction used to format payloads inAwsCustomResource's runtime to correctly decode values if they are a typed array or a buffer.Created a new integ test which fails to deploy if the payload property is not serialized correctly and able to be made a Cfn output.
Fixes: #26730
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