@neoniousTR
After some tries and tests, I have a working solution !
To implement it :
I copied the following code in a polyfill.js external file
I inserted a require in my module managing serial ports and using the external parser @serialport/parser-readline
if (!Uint8Array.prototype.indexOf)
Uint8Array.prototype.indexOf = (function(Object, max, min) {
"use strict"
return function indexOf(member, fromIndex) {
if (this === null || this === undefined)
throw TypeError("Uint8Array.prototype.indexOf called on null or undefined")
var that = Object(this), Len = that.length >>> 0, i = min(fromIndex | 0, Len)
if (i < 0) i = max(0, Len + i)
else if (i >= Len) return -1
if (member === void 0) { // undefined
for (; i !== Len; ++i) if (that[i] === void 0 && i in that) return i
} else if (member !== member) { // NaN
return -1 // Since NaN !== NaN, it will never be found. Fast-path it.
} else { // all else
// the argument to search can be String|Buffer|Number with several bytes
// also we convert in Array to compare easily
var memberArray = Buffer.from(member);
for (var ok ; i !== (Len - memberArray.length + 1); ++i) {
for (var j = 0, ok = true; j < memberArray.length; j++) {
if (that[i+j] !== memberArray[j]) {
ok = false;
break;
}
}
if(ok) return i;
}
}
return -1 // if the value was not found, then return -1
}
})(Object, Math.max, Math.min)
