OME-Zarr plate opening bug

[tischi]

Illegal char <:> at index 5: https://radosgw.public.os2.wwu.de/ngff/test.zarr/A/3/0\.zgroup

.zgroup content:

{
  "zarr_format" : 2
}

Originally posted by @JensWendt in #984 (comment)

[tischi]

@JensWendt thank you for reporting this. I will look into this asap.

[tischi]

@JensWendt could you provide some more information on what that URL points to? Is that an AWS S3 store?

I am getting this error now:

Caused by: com.amazonaws.SdkClientException: Unable to load AWS credentials from any provider in the chain: [EnvironmentVariableCredentialsProvider: Unable to load AWS credentials from environment variables (AWS_ACCESS_KEY_ID (or AWS_ACCESS_KEY) and AWS_SECRET_KEY (or AWS_SECRET_ACCESS_KEY)), SystemPropertiesCredentialsProvider: Unable to load AWS credentials from Java system properties (aws.accessKeyId and aws.secretKey), WebIdentityTokenCredentialsProvider: To use assume role profiles the aws-java-sdk-sts module must be on the class path., com.amazonaws.auth.profile.ProfileCredentialsProvider@53e82089: profile file cannot be null, com.amazonaws.auth.EC2ContainerCredentialsProviderWrapper@29bd056a: Failed to connect to service endpoint: ]

Is that address (https://radosgw.public.os2.wwu.de/ngff/test.zarr) maybe somehow protected?

[tischi]

I fixed everything:

I was quite a detective work; see here for details: https://imagesc.zulipchat.com/#narrow/stream/328251-NGFF/topic/S3.20Zarr.20access.20issue

TODO next #1066