Type detection error

[faust64]

Trying to integrate NextCloud with LOOL, I'm facing with a weird error:

wsd-00008-00057 2019-12-12 11:59:59.589612 [ docbroker_001 ] INF  WOPI::GetFile downloaded 77422 bytes from [https://<nextcloud-fqdn>/index.php/apps/richdocuments/wopi/files/28_oc3xnhn67wcq/contents?access_token=Hihot4xoFinarkt5u9w3WufMarIs4UWP&access_token_ttl=0] -> /opt/lool/child-roots/ru8DIe1C7zFSTTjw/user/docs/ru8DIe1C7zFSTTjw/About.odt in 0.321827s| wsd/Storage.cpp:854
wsd-00008-00057 2019-12-12 11:59:59.590039 [ docbroker_001 ] INF  SHA1 for DocKey [/index.php/apps/richdocuments/wopi/files/28_oc3xnhn67wcq] of [/user/docs/ru8DIe1C7zFSTTjw/About.odt]: da39a3ee5e6b4b0d3255bfef95601890afd80709| wsd/DocumentBroker.cpp:813
wsd-00008-00057 2019-12-12 11:59:59.590111 [ docbroker_001 ] INF  TileCache ctor for uri [https://<nextcloud-fqdn>/index.php/apps/richdocuments/wopi/files/28_oc3xnhn67wcq?access_token=Hihot4xoFinarkt5u9w3WufMarIs4UWP&access_token_ttl=0], modifiedTime=1576151999], dontCache=false| wsd/TileCache.cpp:45
wsd-00008-00057 2019-12-12 11:59:59.590206 [ docbroker_001 ] INF  Filesystem [/opt/lool/child-roots/.] has 52666 MB free (51.9576%).| common/FileUtil.cpp:324
wsd-00008-00057 2019-12-12 11:59:59.590290 [ docbroker_001 ] DBG  #23 Thread affinity set to 0x7fa19affd700 (was 0).| ./net/Socket.hpp:282
wsd-00008-00031 2019-12-12 11:59:59.590353 [ admin ] DBG  Added admin document [/index.php/apps/richdocuments/wopi/files/28_oc3xnhn67wcq].| wsd/AdminModel.cpp:483
wsd-00008-00057 2019-12-12 11:59:59.590549 [ docbroker_001 ] INF  Requesting document load from child.| wsd/ClientSession.cpp:759
kit-00028-00026 2019-12-12 11:59:59.590563 [ kit_spare_001 ] INF  New session [05d] request on url [/index.php/apps/richdocuments/wopi/files/28_oc3xnhn67wcq].| kit/Kit.cpp:2128
kit-00028-00026 2019-12-12 11:59:59.590593 [ kitbroker_001 ] INF  Thread 26 (7f6faecf1000) of process 28 formerly known as [kit_spare_001] is now called [kitbroker_001].| common/Util.cpp:566
kit-00028-00026 2019-12-12 11:59:59.591683 [ kitbroker_001 ] INF  Document ctor for [/index.php/apps/richdocuments/wopi/files/28_oc3xnhn67wcq] url [/index.php/apps/richdocuments/wopi/files/28_oc3xnhn67wcq] on child [ru8DIe1C7zFSTTjw] and id [001].| kit/Kit.cpp:724
kit-00028-00026 2019-12-12 11:59:59.591748 [ kitbroker_001 ] INF  Creating first session for url: /index.php/apps/richdocuments/wopi/files/28_oc3xnhn67wcq for sessionId: 05d on jailId: ru8DIe1C7zFSTTjw| kit/Kit.cpp:781
kit-00028-00026 2019-12-12 11:59:59.591779 [ kitbroker_001 ] INF  ChildSession ctor [ToMaster-05d].| kit/ChildSession.cpp:76
kit-00028-00026 2019-12-12 11:59:59.591798 [ kitbroker_001 ] DBG  Sessions: 1| kit/Kit.cpp:790
kit-00028-00026 2019-12-12 11:59:59.592067 [ kitbroker_001 ] INF  Loading url [file:///user/docs/ru8DIe1C7zFSTTjw/About.odt] for session [05d] which has 0 sessions. Another load in progress: 0| kit/Kit.cpp:1316
kit-00028-00026 2019-12-12 11:59:59.592097 [ kitbroker_001 ] INF  Loading new document from URI: [file:///user/docs/ru8DIe1C7zFSTTjw/About.odt] for session [05d].| kit/Kit.cpp:1603
kit-00028-00026 2019-12-12 11:59:59.592152 [ kitbroker_001 ] DBG  Calling lokit::documentLoad(file:///user/docs/ru8DIe1C7zFSTTjw/About.odt, "Language=en-en").| kit/Kit.cpp:1621
kit-00028-00026 2019-12-12 11:59:59.755049 [ kitbroker_001 ] DBG  Returned lokit::documentLoad(file:///user/docs/ru8DIe1C7zFSTTjw/About.odt) in 162.874ms.| kit/Kit.cpp:1627
kit-00028-00026 2019-12-12 11:59:59.755109 [ kitbroker_001 ] ERR  Failed to load: file:///user/docs/ru8DIe1C7zFSTTjw/About.odt, error: Unsupported URL <file:///user/docs/ru8DIe1C7zFSTTjw/About.odt>: "type detection failed"| kit/Kit.cpp:1635
kit-00028-00026 2019-12-12 11:59:59.755137 [ kitbroker_001 ] ERR  Failed to get LoKitDocument instance for [file:///user/docs/ru8DIe1C7zFSTTjw/About.odt].| kit/ChildSession.cpp:612
kit-00028-00026 2019-12-12 11:59:59.755192 [ kitbroker_001 ] WRN  Document::ViewCallback. Session [-1] is no longer active to process [LOK_CALLBACK_ERROR] [{
    "classification": "error",
    "cmd": "load",
    "kind": "io",
    "code": "0x302(Error Area:Io Class:NotExists Code:2)",
    "message": ""
}
] message to Master Session.| kit/Kit.cpp:1944
wsd-00008-00057 2019-12-12 11:59:59.755345 [ docbroker_001 ] WRN  Document load failed: faileddocloading| wsd/ClientSession.cpp:1112

AFAIU, that About.odt gets properly downloaded from NextCloud, I would eventually a new sub-folder in /opt/lool/child-roots, with what I assume to be a copy of my file (it gets created then dropped almost instantly).

$ find /opt/lool/child-roots
...
/opt/lool/child-roots/IMektHGge9idCRq6/user/docs/IMektHGge9idCRq6/About.odt

I can't figure out why that "Unsupported URL" message is showing up.

Can this be, in any way, related to my configuration? -- or can you reproduce?

Note: I've had to patch the loolwsd.xml configuration, including (among other) a storage.ssl definition that's not in your copy, yet shows in container post build/before mounting the ConfigMap.

Trying to fix https://github.com/CollaboraOnline/Docker-CODE base on your Dockerfile, I'm hittng with the very same message - although I assumed it could be related to using a nightly build as a base image, I'm no longer convinced this is our case.