TypeError in eosjs-jsonrpc.js

[apond308]

Version of EOSJS
22.1.0

Describe the bug
node_modules/eosjs/dist/eosjs-jsonrpc.js:102
return [4 /yield/, f(this.endpoint + path, {
^
TypeError: f is not a function

This line of code is trying to use f, which is defined in the previous line: "f = this.fetchBuiltin;", as a function, and it is throwing an error.

To Reproduce
Steps to reproduce the behavior:
Run the example code found here

Screenshots

Desktop (please complete the following information):

• OS: Ubuntu 20.04

[apond308]

I changed that line to

return [4 /*yield*/, this.fetch(this.endpoint + path, {

and now it is giving the error of

node_modules/eosjs/dist/eosjs-jsonrpc.js:103
body: JSON.stringify(body),

RangeError: Invalid string length