mime.charsets in Response.js is undefined

[robertlario]

mime.charsets in Response.js is undefined

[wesleytodd]

Can you post some example code where it is having this error behavior?

[robertlario]

I am trying to run my code in serverless-offline.

I do not call the code directly.

Here is the stack trace:

TypeError: Cannot read properties of undefined (reading 'charsets')
at ServerResponse.header (..\node_modules\express\lib\response.js:790:1)
at ServerResponse.contentType (..\node_modules\express\lib\response.js:625:1)
at setContentTypeMiddleware (..\lib\router\middlewares\setContentType.js:15:1)
at Layer.handle [as handle_request] (..\node_modules\express\lib\router\layer.js:95:1)
at trim_prefix (..\node_modules\express\lib\router\index.js:328:1)
at ..\node_modules\express\lib\router\index.js:286:1
at Function.process_params (..\node_modules\express\lib\router\index.js:346:1)
at next (..\node_modules\express\lib\router\index.js:280:1)
at ..\lib\router\middlewares\setServerUrl.js:26:1
at .webpack\service\src\index.js:154906:9 {stack: 'TypeError: Cannot read properties of undefine…oyment.webpack\service\src\index.js:154906:9', message: 'Cannot read properties of undefined (reading 'charsets')'}

Here are my modules:
@types/[email protected]
├── @types/[email protected]
├── @types/[email protected]
├── @types/[email protected]
├── @types/[email protected]
├── @types/[email protected]
├── @types/[email protected]
├── @types/[email protected]
├── @types/[email protected]
├── @types/[email protected]
├── @types/[email protected]
├── @types/[email protected]
├── @typescript-eslint/[email protected]
├── @typescript-eslint/[email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]
├── [email protected]

[wesleytodd]

I don't know what serverless offline is, but in the stack I see this is the closes thing that looks like user land code: at ..\lib\router\middlewares\setServerUrl.js:26:1

[robertlario]

at line 34 in response.js

var mime = send.mime;

send.mime appears to be undefined.

Any thoughts?

[wesleytodd]

https://github.com/pillarjs/send/blob/master/index.js#L71

I looked at that initially and am not sure how it could be. That is why I would need more to go off of to debug.

[wesleytodd]

Also, the npm ls output you showed doesn't show these things afaict. If you think it is something with the packages installed please post more of the output.

[robertlario]

It was a versioning issue! :-( What a nightmare!

Please consider the issue closed. Thank you for your help!

[wesleytodd]

Haha, no problem. Glad you got it sorted out!