Calling SET_WIDGET_URL doesn't work before redirect to other URL

[xvlcekp]

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• [x] I have checked the issue tracker for duplicate issues.

Description I cannot figure how to redirect to a different widget URL. I assume send message of type 'SET_WIDGET_URL' doesn't work. Here is my scenario:

I set an initial URL pointing to a decision server. It retrieves the portal ID, makes the API request to get the customer's url. Before redirect, I set 'SET_WIDGET_URL' with the new URL I do the redirect to the new URL. It is very similar to the issue #18 . The URLs are in format: company1.x.com, company2.x.com, company3.x.com and so on...

Expected behavior When I send a message of type messageType.SET_WIDGET_URL, I expect the iFrameManager stores the new host, so I can do the redirect to this URL, where a calling-extensions-sdk library will be initialized.

To Reproduce I am calling this message, but it has no effect:

      cti.sendMessage({
          type: 'SET_WIDGET_URL',
          iFrameUrl: `https://newInstance.host.com/custom//index.html`
      });

Screenshots/source code

<script>
    const sizeInfo = {
        width: 400,
        height: 650,
    };
    const cti = new window.default({
        debugMode: true,
        eventHandlers: {
            onReady: ({ engagementId, portalId, userId } = {}) => {
                cti.initialized({ // The script was initialized to get portalId
                    engagementId,
                    isLoggedIn: false,
                    sizeInfo,
                });
                if (portalId) {
                    let newUrl = getUrlPlaceholder(); // We fetch URL based on portalId
                    cti.sendMessage({
                        type: 'SET_WIDGET_URL',
                        iFrameUrl: `https://${newUrl}`
                    });
                    window.location.assign(`https://${newUrl}/custom/index.html`); // I assume this script will initialize the library after redirect
                }
            },
        },
    });
</script>

Device information https://www.whatsmybrowser.org/b/UCQLI

Additional context I cleared the private information because of data protection. If you need further information, let me know.