eDrawings does not work in 3D Content Central

I do have 3rd party cookies enabled, I have erased solidworks cookies and I have tried it with completely unmodified Edge as well as Chrome with plenty of extensions. Using Windows 10 pro here.

Chrome developer tool shows two errors for the page:

blob:http://edrawings.solidworks.com/3a5f1ebf-2adc-4926-8efc-ae333bdedbc7:1 WebSocket connection to 'ws://edrawings.solidworks.com/wsp/11201' failed: Error during WebSocket handshake: 'Connection' header value must contain 'Upgrade'

self.onmessage @ blob:http://edrawings.solidworks.com/3a5f1ebf-2adc-4926-8efc-ae333bdedbc7:1

And:

content_script.js:10 Uncaught Error: Unrecognized event name: undefined

    at receivePageEvent (content_script.js:10)

    at content_script.js:4

receivePageEvent @ content_script.js:10

(anonymous) @ content_script.js:4

postMessage (async)

launchTag @ tc_global3ds.js:11

(anonymous) @ tc_global3ds.js:261

That latter bit repeats 9 times,

Edge console messages:

  1. 2 CONSOLE1810304: console.memory is not implemented and will return 0 for all attributes. Please use the memory profiler to monitor memory utilisation.

  2. SEC7115: :visited and :link styles can only differ by colour. Some styles were not applied to :visited.download-model.aspx (1,1)
  3. CSI/tbsd_: 5,187.697 ms
  4. CSI/_tbnd: 5,187.897 ms
  5. v is not a valid query parameter.edrawings.min.js (1,510830)
  6. loading from SCeDrawingsBase.min.js (2824,493)
  7. Model 7b9a8b6c9ba946898f4a140f8a0688a1.TR%20Fastenings%20LtdM1_4X3MM.EPRT load failed: WebSocket connection failed.edrawings.min.js (1,519830)
  8. SCRIPT12152: SCRIPT12152: WebSocket Error: Network Error 12152, The server returned an invalid or unrecognised response

Chrome console messages:

content_script.js:10 Uncaught Error: Unrecognized event name: undefined

    at receivePageEvent (content_script.js:10)

    at content_script.js:4

receivePageEvent @ content_script.js:10

(anonymous) @ content_script.js:4

edrawings.min.js:1 v is not a valid query parameter.

getRequestedQueryStringParams @ edrawings.min.js:1

startViewer @ edrawings.min.js:1

start @ edrawings.min.js:1

(anonymous) @ edrawings.min.js:1

execCb @ require.js:1

check @ require.js:1

(anonymous) @ require.js:1

(anonymous) @ require.js:1

(anonymous) @ require.js:1

each @ require.js:1

emit @ require.js:1

check @ require.js:1

(anonymous) @ require.js:1

(anonymous) @ require.js:1

(anonymous) @ require.js:1

each @ require.js:1

emit @ require.js:1

check @ require.js:1

enable @ require.js:1

init @ require.js:1

h @ require.js:1

completeLoad @ require.js:1

onScriptLoad @ require.js:1

eDrawingsBase.min.js:2824 loading from SC

browser-source-map-support.js:107 [Deprecation] Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.

(anonymous) @ browser-source-map-support.js:107

(anonymous) @ browser-source-map-support.js:101

a @ browser-source-map-support.js:101

c @ browser-source-map-support.js:104

(anonymous) @ browser-source-map-support.js:105

f @ browser-source-map-support.js:105

console.debugLog @ edrawings.min.js:1

createViewer @ edrawings.min.js:1

(anonymous) @ edrawings.min.js:1

step @ edrawings.min.js:1

(anonymous) @ edrawings.min.js:1

fulfilled @ edrawings.min.js:1

blob:http://edrawings.solidworks.com/3a5f1ebf-2adc-4926-8efc-ae333bdedbc7:1 WebSocket connection to 'ws://edrawings.solidworks.com/wsp/11201' failed: Error during WebSocket handshake: 'Connection' header value must contain 'Upgrade'

self.onmessage @ blob:http://edrawings.solidworks.com/3a5f1ebf-2adc-4926-8efc-ae333bdedbc7:1

blob:http://edrawings.solidworks.com/3a5f1ebf-2adc-4926-8efc-ae333bdedbc7:1 WebSocket connection to 'ws://edrawings.solidworks.com/wsp/11201' failed: Error during WebSocket handshake: 'Connection' header value must contain 'Upgrade'

self.onmessage @ blob:http://edrawings.solidworks.com/3a5f1ebf-2adc-4926-8efc-ae333bdedbc7:1

edrawings.min.js:1 Model 32ff8216697d404ba61d5573027c5afc.User%20LibraryDIN%20EN%20ISO%207045.EPRT load failed: WebSocket connection failed.

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