While playing Dandelion radio from the http://www.dandelionradio.com/DandelionRadio.pls stream, I noticed my RPi3 wont show the cover-art embedded from Discogs either. F.ex: this one ain’t shown:
https://img.discogs.com/wBpvmHQHXOvMUbKE-IdWamolUf0=/150×150/smart/filters:strip_icc():format(jpeg):mode_rgb():quality(40)/discogs-images/A-1741195-1427667902-1010.jpeg.jpg
Dandelion is new station for me, but I’m pretty sure it had cover-arts the first time I listened to it.
So I tried looking at headers when using curl (on my PC) to fetch some cover-art my RPi3 will show and some it wont show:
My RPi3 WORKS with images from is4-ssl.mzstatic.com, like:
C:\Users\Stig>curl --head https://is4-ssl.mzstatic.com/image/thumb/Music/v4/7f/a6/96/7fa696d6-c736-d7ef-67d5-fc6d9d432461/source/200x200bb.jpg
HTTP/1.1 200 OK
Server: ATS/8.0.7
Content-Type: image/jpeg
Content-Length: 25986
X-Apple-Jingle-Correlation-Key: LZ5BTQSMCYRU6OV3N37EUG37NM
X-Apple-Request-UUID: 5e7a19c2-4c16-234f-3abb-6efe4a1b7f6b
apple-seq: 0.0
apple-tk: false
Apple-Originating-System: UnknownOriginatingSystem
Last-Modified: Sat, 25 Apr 2020 04:51:50 GMT
ETag: "FDdRKLBuVYxmcanAoUBerA=="
Access-Control-Allow-Origin: *
Access-Control-Expose-Headers: Content-Length,Content-Type,ETag,Cache-Control,Expires,Last-Modified
Strict-Transport-Security: max-age=31536000; includeSubDomains
x-daiquiri-instance: daiquiri:13624002:mr85p00it-hyhk03094901:7987:20E24
CDNUUID: d510cb70-168a-477f-9ae0-dc1a618cd34a-967962253
Cache-Control: no-transform, max-age=14464339
Date: Sun, 26 Apr 2020 18:01:39 GMT
X-Cache: TCP_MISS from a95-100-154-37.deploy.akamaitechnologies.com (AkamaiGHost/10.0.0.1-29304580) (-)
Connection: keep-alive
X-Cache-Remote: TCP_MISS from a2-16-128-197.deploy.akamaitechnologies.com (AkamaiGHost/9.9.4.2-29290934) (-)But it DOESN’T WORK with images from m.media-amazon.com or img.discogs.com, like:
C:\Users\Stig>curl --head https://m.media-amazon.com/images/I/51MO0of2EiL.jpg
HTTP/1.1 200 OK
Connection: keep-alive
Content-Length: 63037
Content-Type: image/jpeg
Expires: Fri, 09 Mar 2040 09:25:04 GMT
Cache-Control: max-age=630720000,public
X-Amz-IR-Id: c808de4f-73d1-4a64-ae7c-141a9a7be577
Timing-Allow-Origin: https://www.amazon.in, https://www.amazon.com
Access-Control-Allow-Origin: *
Last-Modified: Thu, 03 Nov 2016 22:53:15 GMT
Accept-Ranges: bytes
Date: Sun, 26 Apr 2020 18:21:10 GMT
Age: 297202
X-Served-By: cache-dca17751-DCA, cache-cph20639-CPH
X-Cache: HIT from fastly, HIT from fastlyC:\Users\Stig>curl --head https://img.discogs.com/wBpvmHQHXOvMUbKE-IdWamolUf0=/150x150/smart/filters:strip_icc():format(jpeg):mode_rgb():quality(40)/discogs-images/A-1741195-1427667902-1010.jpeg.jpg
HTTP/1.1 200 OK
Connection: keep-alive
Content-Length: 3880
Cache-Control: max-age=315360000,public
Content-Type: image/jpeg
Etag: "007a18b23a1116239cb7f3d4cd758985e771dbce"
Expires: Sat, 06 Apr 2030 08:34:42 GMT
Server: nginx/1.16.1
Via: 1.1 varnish
Accept-Ranges: bytes
Date: Sun, 26 Apr 2020 18:22:21 GMT
Via: 1.1 varnish
Age: 1590458
X-Served-By: cache-sea4460-SEA, cache-cph20631-CPH
X-Cache: HIT, HIT
X-Cache-Hits: 1, 1
X-Timer: S1587925341.165648,VS0,VE1I’m not an expert in those headers. But I don’t think there’s anything very suspicious here?
I’m so lost…
