WebView plugin failed to load content

Hello,
I have a server that hosted the Theia IDE and I am using a chrome browser connected to this remote server. Theia is running at the following url https://pchuong-cloud-vm.dhcp.ti.com/ide. I am trying to create a WebView plugin and set the webview.html property to load the index.html source. But I am getting the error below in the iframe. Is this a configuration issue? Any pointer how to fix this error?

da556bfe-8650-4c80-b53d-8047c00375d1.webview.pchuong-cloud-vm.dhcp.ti.com ’s server IP address could not be found

Thanks,
Patrick