Setting Cache-control metadata to bucket.uploadFile gets overwritten /updated as custom metadata

[ravindran78511]

Setting Cache-control metadata to bucket.uploadFile gets overwritten /updated as custom metadata.

e.g. Map<String, String> metadata = {'Cache-Control':'public'}
String etag = await bucket.uploadFile(
objectKey, File(filePath), lookupMimeType(filePath), dospace.Permissions.public,meta: metadata);

uploads with the metadata as x-amz-meta-cache-control. dospace_bucket.dart overrides the metadata value always with x-amz

[kaetemi]

Hmm... Should we add another parameter for rawMeta then?

[ravindran78511]

I think we can just check if the header parameter is standard one as Cache-Control and not override it.

[kaetemi]

That could work too. Do you have a list?

[ravindran78511]

Standard header field values: https://api.dart.dev/stable/2.9.3/dart-io/HttpHeaders-class.html

However the Digitial ocean space only seems to have provision for setting the following:
Content-Disposition, Content-Type, Content-Encoding, Cache-Control
https://www.digitalocean.com/docs/spaces/how-to/set-file-metadata/

So if we have a case insensitive check to not prefix for custom metadata prefix for this would help.

Thanks