Error when calling createBuyOrder()

I get the following error when i try to place a bid with createBuyOrder().

TypeError: process.versions is undefined
    XMLHttpRequest xml-http-request.js:92
    prepareRequest httpprovider.js:61
    sendAsync httpprovider.js:116
    sendAsync requestmanager.js:80
    send method.js:141
    call function.js:140
    promisifiedFunction promisify.js:58
    promisifiedFunction promisify.js:54
    step promisify.js:32
    verb promisify.js:13
    __awaiter promisify.js:7
    __awaiter promisify.js:3
    promisifiedFunction promisify.js:52
    callAsync wyvern_exchange.js:774
    step wyvern_exchange.js:42
    verb wyvern_exchange.js:23
    __awaiter wyvern_exchange.js:17
    __awaiter wyvern_exchange.js:13
    callAsync wyvern_exchange.js:768
    _buyOrderValidationAndApprovals seaport.js:2736
    step seaport.js:40
    verb seaport.js:21
    fulfilled seaport.js:12
    promise callback*step seaport.js:14
    fulfilled seaport.js:12
    promise callback*step seaport.js:14
    __awaiter seaport.js:15
    __awaiter seaport.js:11
    _buyOrderValidationAndApprovals seaport.js:2700
    createBuyOrder seaport.js:556
    step seaport.js:40
    verb seaport.js:21
    fulfilled seaport.js:12
    promise callback*step seaport.js:14
    __awaiter seaport.js:15
    __awaiter seaport.js:11
    createBuyOrder seaport.js:530

Here is the code that call the createBuyOrder method :

const result = await seaport.createBuyOrder({
  asset: {
    tokenId: this.asset.tokenId,
    tokenAddress: this.asset.tokenAddress,
    schemaName: this.asset.schemaName,
  },
  accountAddress,
  startAmount: this.bid.value,
  paymentTokenAddress,
});

I found the line in xhr2-cookies/dist/xml-http-request.js dependency : _this._userAgent = "Mozilla/5.0 (" + os.type() + " " + os.arch() + ") node.js/" + process.versions.node + " v8/" + process.versions.v8;

Declaring a global object doesn’t seem to work :

window.process = window.process || {}:
window.process.versions = window.process.versions || { node: '', v8: ''}:

Could you please tell me what I am doing wrong and/or how I can fix this issue ?

[turinglabsorg]

Solved declaring versions like this:

process.versions = { node: "", v8: "" };

[esteban-OpenSea]

Checking in again, are you still running into this issue?