[x] I have checked Braze's documentation and am still experiencing the issue.

Report

Describe your environment.

Info	Value
SDK Version	3.3.0
Browser Affected	Chrome
Affected Browser Version	93.0.4577.82 (Official Build) (x86_64)
Operating System Affected	Mac
Integration Method	CDN
Repro rate	All the time

What did you do?

We integrated Braze through CDN and are using npm package for the types, as we're using TypeScript.

import Appboy from '@braze/web-sdk'

appboy.subscribeToInAppMessage(inAppMessage => {
    console.log(inAppMessage instanceof Appboy.ModalMessage)
})

What did you expect to happen?

I would expect true to be logged when modal in-app message is sent.

What happened instead?

false is logged.

Steps to reproduce

Install Braze through npm 3.3
Integrate Braze by using CDN
Load the website
Programatically subscribe to in app messages as in the code snippet above
Send modal message

Initialization:

<script type="text/javascript">
  +function(a,p,P,b,y){a.appboy={};a.appboyQueue=[];for(var s="DeviceProperties Card Card.prototype.dismissCard Card.prototype.removeAllSubscriptions Card.prototype.removeSubscription Card.prototype.subscribeToClickedEvent Card.prototype.subscribeToDismissedEvent Banner CaptionedImage ClassicCard ControlCard ContentCards ContentCards.prototype.getUnviewedCardCount Feed Feed.prototype.getUnreadCardCount ControlMessage InAppMessage InAppMessage.SlideFrom InAppMessage.ClickAction InAppMessage.DismissType InAppMessage.OpenTarget InAppMessage.ImageStyle InAppMessage.Orientation InAppMessage.TextAlignment InAppMessage.CropType InAppMessage.prototype.closeMessage InAppMessage.prototype.removeAllSubscriptions InAppMessage.prototype.removeSubscription InAppMessage.prototype.subscribeToClickedEvent InAppMessage.prototype.subscribeToDismissedEvent FullScreenMessage ModalMessage HtmlMessage SlideUpMessage User User.Genders User.NotificationSubscriptionTypes User.prototype.addAlias User.prototype.addToCustomAttributeArray User.prototype.getUserId User.prototype.incrementCustomUserAttribute User.prototype.removeFromCustomAttributeArray User.prototype.setAvatarImageUrl User.prototype.setCountry User.prototype.setCustomLocationAttribute User.prototype.setCustomUserAttribute User.prototype.setDateOfBirth User.prototype.setEmail User.prototype.setEmailNotificationSubscriptionType User.prototype.setFirstName User.prototype.setGender User.prototype.setHomeCity User.prototype.setLanguage User.prototype.setLastKnownLocation User.prototype.setLastName User.prototype.setPhoneNumber User.prototype.setPushNotificationSubscriptionType InAppMessageButton InAppMessageButton.prototype.removeAllSubscriptions InAppMessageButton.prototype.removeSubscription InAppMessageButton.prototype.subscribeToClickedEvent display display.automaticallyShowNewInAppMessages display.destroyFeed display.hideContentCards display.showContentCards display.showFeed display.showInAppMessage display.toggleContentCards display.toggleFeed changeUser destroy getDeviceId initialize isPushBlocked isPushGranted isPushPermissionGranted isPushSupported logCardClick logCardDismissal logCardImpressions logContentCardsDisplayed logCustomEvent logFeedDisplayed logInAppMessageButtonClick logInAppMessageClick logInAppMessageHtmlClick logInAppMessageImpression logPurchase openSession registerAppboyPushMessages removeAllSubscriptions removeSubscription requestContentCardsRefresh requestFeedRefresh requestImmediateDataFlush resumeWebTracking setLogger setSdkAuthenticationSignature stopWebTracking subscribeToContentCardsUpdates subscribeToFeedUpdates subscribeToInAppMessage subscribeToNewInAppMessages subscribeToSdkAuthenticationFailures toggleAppboyLogging trackLocation unregisterAppboyPushMessages wipeData".split(" "),i=0;i<s.length;i++){for(var m=s[i],k=a.appboy,l=m.split("."),j=0;j<l.length-1;j++)k=k[l[j]];k[l[j]]=(new Function("return function "+m.replace(/\./g,"_")+"(){window.appboyQueue.push(arguments); return true}"))()}window.appboy.getCachedContentCards=function(){return new window.appboy.ContentCards};window.appboy.getCachedFeed=function(){return new window.appboy.Feed};window.appboy.getUser=function(){return new window.appboy.User};(y=p.createElement(P)).type='text/javascript';
    y.src='https://js.appboycdn.com/web-sdk/3.3/appboy.min.js';
    y.async=1;(b=p.getElementsByTagName(P)[0]).parentNode.insertBefore(y,b)
  }(window,document,'script');

  appboy.initialize(
    sdk_key
    {
      baseUrl: ...,
      enableLogging: true,
      sessionTimeoutInSeconds: 1
    }
  );

  appboy.changeUser(...);

  appboy.openSession();
</script>

braze-inc / braze-web-sdk