playground: PNG export doesn't include images

[a-h]

When I go into the playground and export the diagram as PNG, the images are not included.

direction: right

s3: S3
s3: {
  icon: https://icons.terrastruct.com/aws%2FStorage%2FAmazon-Simple-Storage-Service-S3.svg
}
onUpload: {
  icon: https://icons.terrastruct.com/aws%2FCompute%2FAWS-Lambda.svg
}
sqs: SQS
sqs: {
  icon: https://icons.terrastruct.com/aws%2FApplication%20Integration%2FAmazon-Simple-Queue-Service-SQS.svg
}
processor: Processor
processor: {
  icon: https://icons.terrastruct.com/aws%2FCompute%2FAWS-Lambda.svg
}

api: API
api: {
  icon: https://icons.terrastruct.com/tech%2Fservers.svg
}

s3 -> onUpload: Flat file
onUpload -> sqs: Individual records
sqs -> processor: Controlled\nbatches/concurrency
processor -> api: API calls

https://play.d2lang.com/?script=rJM9a_swEMZ3f4pbPDr-Y28a_hAChkCHBFG6dLnI10QgS-qd7NKWfveixHmhUwOdfC_4OZ7fgy7xKuCMsyikVaDb4-ezAMhEFRxSiqLqOneySMSMkng0aWHCUOOblE2nU2DcU9l0ywE_gq-0HaKjap5XmniyhirdLmTaF19F8I_RBezvPbQKQxzT8dCTrh5w2PU4S8qrKNBbfSruk13G6KzBDKNs_q19oj3P3Q9H25HGGz9bPV-PHAyJBFawOZe3wz-zWWC0Cpab9an4rW4icyibTognYjlrSQvVf7iG0TlM8GIdXQLK-yPQte_tZPsRHTCZwL1k0Hl943IVfOKQH_uz32EyB5LaBG9GZvLm_Qok_3c2Agadk-I7AAD__w%3D%3D&layout=elk&

[a-h]

This is a duplicate (with an example of terrastruct/d2-playground#17