referenceError when using require in _view filter for _changes

[ghost]

Description

Given a view function using CommonJS to require something, when using that view as a filter for _changes (see docs), then the response is a 500 status with a referenceError logged like below:

{<<"ReferenceError">>,{[]}} [
	{couch_os_process,prompt,2,[{file,"src/couch_os_process.erl"},{line,59}]},
	{couch_query_servers,proc_prompt,2,[{file,"src/couch_query_servers.erl"},{line,520}]},
	{couch_query_servers,with_ddoc_proc,2,[{file,"src/couch_query_servers.erl"},{line,514}]},
	{couch_query_servers,filter_view,3,[{file,"src/couch_query_servers.erl"},{line,486}]},
	{couch_changes,filter,3,[{file,"src/couch_changes.erl"},{line,236}]},
	{fabric_rpc,changes_enumerator,2,[{file,"src/fabric_rpc.erl"},{line,514}]},
	{couch_bt_engine,drop_reductions,4,[{file,"src/couch_bt_engine.erl"},{line,1177}]},
	{couch_btree,stream_kv_node2,8,[{file,"src/couch_btree.erl"},{line,849}]}
]

Steps to Reproduce

Create a design doc like this:

{
  "_id": "_design/MyDesignDoc",
  "views": {
    "myView": {
      "map": "function(doc) {\n  var myLib = require('views/lib/myLib');\n  log(myLib.myExport); // expecting to log 'foo'\n  emit(doc._id, 1);\n}"
    },
    "lib": {
      "myLib": "exports.myExport = \"foo\";"
    }
  }
}

Follow URL like this: myDb/_changes?filter=_view&view=MyDesignDoc/myView

Expected Behaviour

Seeing changes filtered by the map function from that view.

Your Environment

apache/couchdb:3.0.0

Additional Context

n/a

[Minecraftschurli]

I have the same issue with a normal filter function (using the docker image 3.2.1)