Receiving "headers[headerName].trim is not a function" error when sending PutObjectCommand to S3

[dormesica]

I'm attempting to read an object from S3, run some processing on it and them write another object to the same bucket with different object key.

I was able to read the first object but when I send the PutObjectCommand I get this error: headers[headerName].trim is not a function.

Stack trace:

TypeError: headers[headerName].trim is not a function
    at getCanonicalHeaders (/var/task/node_modules/@smithy/signature-v4/dist-cjs/getCanonicalHeaders.js:20:62)
    at SignatureV4.signRequest (/var/task/node_modules/@smithy/signature-v4/dist-cjs/SignatureV4.js:120:80)
    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)
    at async /var/task/node_modules/@aws-sdk/middleware-signing/dist-cjs/awsAuthMiddleware.js:16:18
    at async /var/task/node_modules/@smithy/middleware-retry/dist-cjs/retryMiddleware.js:27:46
    at async /var/task/node_modules/@aws-sdk/middleware-flexible-checksums/dist-cjs/flexibleChecksumsMiddleware.js:57:20
    at async /var/task/node_modules/@aws-sdk/middleware-logger/dist-cjs/loggerMiddleware.js:7:26
    at async saveFile (file:///var/task/src/utils/s3.js:68:3)
    at async default (file:///var/task/src/handler.js:60:3)
    at async _handler (file:///var/task/src/index.js:82:3)

I have the appropriate permissions to put and object in that bucket but it keeps failing with this error.

Any idea what can cause this?

[RanVaknin]

Hi @dormesica ,

Can you please share a code snippet that we can use to try and reproduce this issue?

Thanks,
Ran~