MetaMask Unity SDK not working for WebGL

Developer Discussion SDK
1

So whenever I try to create a build from demo scene given in the MetaMask Unity SDK, after clicking on connect, following error is thrown:

Build.loader.js:1 exception thrown: ReferenceError: io is not defined,ReferenceError: io is not defined
    at _EstablishSocket (`blob:http://localhost:10127/90ecd990-329a-4bb0-a1e6-49bc8dbf559e:3:50264`1)
    at wasm://wasm/05be4dde:wasm-function[23799]:0x99b016
    at wasm://wasm/05be4dde:wasm-function[49980]:0x10ff678
    at wasm://wasm/05be4dde:wasm-function[670]:0x4f57d
    at wasm://wasm/05be4dde:wasm-function[15064]:0x551475
    at wasm://wasm/05be4dde:wasm-function[23789]:0x999d7d
    at wasm://wasm/05be4dde:wasm-function[48910]:0x10c648e
    at wasm://wasm/05be4dde:wasm-function[6064]:0x1dd836
    at wasm://wasm/05be4dde:wasm-function[13827]:0x5017c9
    at wasm://wasm/05be4dde:wasm-function[15363]:0x5674c5
    at wasm://wasm/05be4dde:wasm-function[57549]:0x1249ea9
    at wasm://wasm/05be4dde:wasm-function[608]:0x4cefa
    at wasm://wasm/05be4dde:wasm-function[56790]:0x122f7f4
    at wasm://wasm/05be4dde:wasm-function[9538]:0x31a31a
    at wasm://wasm/05be4dde:wasm-function[673]:0x4f5e6
    at wasm://wasm/05be4dde:wasm-function[1152]:0x64132
    at wasm://wasm/05be4dde:wasm-function[1014]:0x5ed31
    at wasm://wasm/05be4dde:wasm-function[47855]:0x109bcea
    at wasm://wasm/05be4dde:wasm-function[673]:0x4f5e6
    at wasm://wasm/05be4dde:wasm-function[37325]:0xd2b014
    at invoke_viiiii (blob:http://localhost:10127/90ecd990-329a-4bb0-a1e6-49bc8dbf559e:3:878140)
    at wasm://wasm/05be4dde:wasm-function[27940]:0xa8c452
    at wasm://wasm/05be4dde:wasm-function[1485]:0x7e38a
    at wasm://wasm/05be4dde:wasm-function[15210]:0x55e3ab
    at wasm://wasm/05be4dde:wasm-function[10285]:0x342ca1
    at wasm://wasm/05be4dde:wasm-function[28060]:0xa961cc
    at wasm://wasm/05be4dde:wasm-function[28064]:0xa96cd9
    at wasm://wasm/05be4dde:wasm-function[56716]:0x122d1b8
    at wasm://wasm/05be4dde:wasm-function[56823]:0x123013d
    at wasm://wasm/05be4dde:wasm-function[47745]:0x109a574
    at wasm://wasm/05be4dde:wasm-function[9517]:0x319abe
    at wasm://wasm/05be4dde:wasm-function[37330]:0xd2b05e
    at invoke_iiii (blob:http://localhost:10127/90ecd990-329a-4bb0-a1e6-49bc8dbf559e:3:876432)
    at wasm://wasm/05be4dde:wasm-function[1644]:0x86957
    at wasm://wasm/05be4dde:wasm-function[18943]:0x68cd30
    at wasm://wasm/05be4dde:wasm-function[846]:0x56150
    at wasm://wasm/05be4dde:wasm-function[13328]:0x4e043a
    at wasm://wasm/05be4dde:wasm-function[45827]:0x104aac3
    at wasm://wasm/05be4dde:wasm-function[20250]:0x73b430
    at wasm://wasm/05be4dde:wasm-function[40112]:0xda63b7
    at wasm://wasm/05be4dde:wasm-function[22710]:0x963a9b
    at wasm://wasm/05be4dde:wasm-function[22710]:0x963b0c
    at wasm://wasm/05be4dde:wasm-function[19239]:0x69e33b
    at wasm://wasm/05be4dde:wasm-function[37322]:0xd2afe0
    at browserIterationFunc (blob:http://localhost:10127/90ecd990-329a-4bb0-a1e6-49bc8dbf559e:3:714205)
    at callUserCallback (blob:http://localhost:10127/90ecd990-329a-4bb0-a1e6-49bc8dbf559e:3:667403)
    at Object.runIter (blob:http://localhost:10127/90ecd990-329a-4bb0-a1e6-49bc8dbf559e:3:668663)
    at Browser_mainLoop_runner (blob:http://localhost:10127/90ecd990-329a-4bb0-a1e6-49bc8dbf559e:3:666938)

Uncaught ReferenceError: io is not defined
    at _EstablishSocket (90ecd990-329a-4bb0-a1e6-49bc8dbf559e:3:502641)
    at 05be4dde:0x99b016
    at 05be4dde:0x10ff678
    at 05be4dde:0x4f57d
    at 05be4dde:0x551475
    at 05be4dde:0x999d7d
    at 05be4dde:0x10c648e
    at 05be4dde:0x1dd836
    at 05be4dde:0x5017c9
    at 05be4dde:0x5674c5
    at 05be4dde:0x1249ea9
    at 05be4dde:0x4cefa
    at 05be4dde:0x122f7f4
    at 05be4dde:0x31a31a
    at 05be4dde:0x4f5e6
    at 05be4dde:0x64132
    at 05be4dde:0x5ed31
    at 05be4dde:0x109bcea
    at 05be4dde:0x4f5e6
    at 05be4dde:0xd2b014
    at invoke_viiiii (90ecd990-329a-4bb0-a1e6-49bc8dbf559e:3:878140)
    at 05be4dde:0xa8c452
    at 05be4dde:0x7e38a
    at 05be4dde:0x55e3ab
    at 05be4dde:0x342ca1
    at 05be4dde:0xa961cc
    at 05be4dde:0xa96cd9
    at 05be4dde:0x122d1b8
    at 05be4dde:0x123013d
    at 05be4dde:0x109a574
    at 05be4dde:0x319abe
    at 05be4dde:0xd2b05e
    at invoke_iiii (90ecd990-329a-4bb0-a1e6-49bc8dbf559e:3:876432)
    at 05be4dde:0x86957
    at 05be4dde:0x68cd30
    at 05be4dde:0x56150
    at 05be4dde:0x4e043a
    at 05be4dde:0x104aac3
    at 05be4dde:0x73b430
    at 05be4dde:0xda63b7
    at 05be4dde:0x963a9b
    at 05be4dde:0x963b0c
    at 05be4dde:0x69e33b
    at 05be4dde:0xd2afe0
    at browserIterationFunc (90ecd990-329a-4bb0-a1e6-49bc8dbf559e:3:714205)
    at callUserCallback (90ecd990-329a-4bb0-a1e6-49bc8dbf559e:3:667403)
    at Object.runIter (90ecd990-329a-4bb0-a1e6-49bc8dbf559e:3:668663)
    at Browser_mainLoop_runner (90ecd990-329a-4bb0-a1e6-49bc8dbf559e:3:666938)

I’ve tried changing unity version but it always comes up. I tried making my own custom scene but same error.

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