Example client code is repeatedly asking for authorization

[laredotornado]

I wanted to give the client a test with my slushpool account. Everything is connecting fine, but there seems to be some kind of loop in which I'm repeatedly asking for authorization. I've included the output below. Is this intended? I didn't find anything mentioned about this behavior in the documentation so I want to verify its not something I'm doing wrong.

localhost:node-stratum davea$ ts-node examples/client.ts
Connected! lets ask for subscribe
Sent!
Mining data: result = { error: null,
id: 1,
result: [ [ [Array], [Array] ], '0765080016f43c', 4 ] }
Asking for authorization
Mining data: broadcast = { params: [ 8192 ], id: null, method: 'set_difficulty' }
Mining data: broadcast = { params:
[ '7a5e',
'244089fad599c594d34cbf2113f8f85738a3f477002cced20000000000000000',
'01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff440340d107fabe6d6d018a23a9d3938f68282ee4266d7f2b47369eda8eba57e1d5ac46241c3c78277b0100000000000000',
'5e7a2f736c7573682f0000000003c75eff4a000000001976a9147c154ed1dc59609e3d26abb2df2ea3d587cd8c4188ac00000000000000002c6a4c2952534b424c4f434b3af71dadaea776bcbe81814b88154015a7d4fa8c62846b23445be1be0204004b740000000000000000266a24aa21a9ed89d0281c8c7080c56a09cabe990d70343de7961cbfb7b53dbf260749f86ec47900000000',
[ 'b942a59aaee78830473bb3e59de854cf01d6192f5ddcf144f3993fe294af986b',
'60bea12566a1202e31072e59d8505270604e7e6d765c525d498fc40a9d40d7c6',
'98f0e59c54bf5f3ec4098ee90e603a0cf954d80e4c27d1c42145b72885fe61ce',
'086e0121b5011cf0827a63758c27cca51e642a9d71179560828ec754606f7d86',
'8ea37b32a351349870bb5a7eac64b4565bd2a0d1cf85799968d8ac9eb160e60b',
'bbd5d0aa9a80ebdc57be4f819f8706c060df6479698dff30076fcaf7f44d0883',
'179ff592ed9b2f8ae44c9342407a295654ec83f653d873b79a04a2e65250e142',
'1d3247127cd95b71f85e20491c2bad15a28269fd6202ad95fc8e956675db1d68',
'ed6b2fe074e7187de8d61fe75c42b943deade685a1e4bd63515b3be4e5e78610' ],
'20000000',
'175589a3',
'5a9f05bc',
true ],
id: null,
method: 'notify' }
Mining data: result = { error: null,
id: 1,
result: [ [ [Array], [Array] ], '0765080016f43c', 4 ] }
Asking for authorization
Mining data: broadcast = { params: [ 8192 ], id: null, method: 'set_difficulty' }
Mining data: broadcast = { params:
[ '7a5e',
'244089fad599c594d34cbf2113f8f85738a3f477002cced20000000000000000',
'01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff440340d107fabe6d6d018a23a9d3938f68282ee4266d7f2b47369eda8eba57e1d5ac46241c3c78277b0100000000000000',
'5e7a2f736c7573682f0000000003c75eff4a000000001976a9147c154ed1dc59609e3d26abb2df2ea3d587cd8c4188ac00000000000000002c6a4c2952534b424c4f434b3af71dadaea776bcbe81814b88154015a7d4fa8c62846b23445be1be0204004b740000000000000000266a24aa21a9ed89d0281c8c7080c56a09cabe990d70343de7961cbfb7b53dbf260749f86ec47900000000',
[ 'b942a59aaee78830473bb3e59de854cf01d6192f5ddcf144f3993fe294af986b',
'60bea12566a1202e31072e59d8505270604e7e6d765c525d498fc40a9d40d7c6',
'98f0e59c54bf5f3ec4098ee90e603a0cf954d80e4c27d1c42145b72885fe61ce',
'086e0121b5011cf0827a63758c27cca51e642a9d71179560828ec754606f7d86',
'8ea37b32a351349870bb5a7eac64b4565bd2a0d1cf85799968d8ac9eb160e60b',
'bbd5d0aa9a80ebdc57be4f819f8706c060df6479698dff30076fcaf7f44d0883',
'179ff592ed9b2f8ae44c9342407a295654ec83f653d873b79a04a2e65250e142',
'1d3247127cd95b71f85e20491c2bad15a28269fd6202ad95fc8e956675db1d68',
'ed6b2fe074e7187de8d61fe75c42b943deade685a1e4bd63515b3be4e5e78610' ],
'20000000',
'175589a3',
'5a9f05bc',
true ],
id: null,
method: 'notify' }
Mining data: result = { error: null,
id: 1,
result: [ [ [Array], [Array] ], '0765080016f43c', 4 ] }
Asking for authorization
Mining data: broadcast = { params: [ 8192 ], id: null, method: 'set_difficulty' }
Mining data: broadcast = { params:
[ '7a5e',
'244089fad599c594d34cbf2113f8f85738a3f477002cced20000000000000000',
'01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff440340d107fabe6d6d018a23a9d3938f68282ee4266d7f2b47369eda8eba57e1d5ac46241c3c78277b0100000000000000',
'5e7a2f736c7573682f0000000003c75eff4a000000001976a9147c154ed1dc59609e3d26abb2df2ea3d587cd8c4188ac00000000000000002c6a4c2952534b424c4f434b3af71dadaea776bcbe81814b88154015a7d4fa8c62846b23445be1be0204004b740000000000000000266a24aa21a9ed89d0281c8c7080c56a09cabe990d70343de7961cbfb7b53dbf260749f86ec47900000000',
...