Workspace app contacts the web server directly and renders the web content. This equals to network consumption on the VDA, but with low RAM and CPU consumption. This can be useful if the endpoint doesn’t have internet access, or if you want to ensure that any security policies/web filtering is still applied to those web resources. In this scenario, the CTXPFWD virtual channel is used by Workspace app to fetch webpage content through the VDA, and then the endpoint renders that content. This equals to potentially high RAM and CPU consumption on the VDA, as well as network consumption. The Citrix VDA fetches and renders the webpage. This is basically how things work without BCR, or if you don’t add a site to the allow list. BCR Scenarios Server fetch and server render This is all achieved by the overlay browser (HdxBrowsercef.exe), a Chromium based browser built into Workspace app, and the Browser Content Redirection extension which runs on Chrome or the newer Chromium based Microsoft Edge. The address bar etc is not redirected and remains on the VDA. The viewport contains the main part of your browser window that shows the web page content itself, as shown below. The end-user will not necessarily know that it is their endpoint doing the fetching and rendering of the web content. Then, the viewport is blended back into the virtual desktop seamlessly. ![]() The endpoint fetches the content (optional) and renders it.The viewport is redirected to the endpoint.A CTXCSB virtual channel informs Workspace app that redirection is required and provides the URL.When a website is enabled for BCR using an allow list controlled via Studio policies, and the user browses to that website: Simply, an extension is installed on to the VDA, and Workspace app as always will be on the client endpoint. Thankfully there is a solution which allows a business to offload that video to the endpoint itself using what we call Browser Content Redirection, which is available to all Virtual Apps and Desktops licensed customers whether on-premises or using Citrix Cloud. Video content is also taxing on CPU first and foremost, so for a Citrix environment that may really impact the overall user experience for video playback amongst all the other activities. Video content itself is also very much part of our daily lives whether it be watching YouTube videos, news clips, training videos, or video conferencing using Microsoft Teams. A real-world example is the car sales industry whereby car dealerships are harnessing social media to sell their stock by way of videos. The Internet contains and delivers more multimedia content than ever before, particularly since Covid-19. Installing the BCR extension on Microsoft Edge – Group Policy.Installing the BCR extension on Microsoft Edge – Manual.Installing the BCR extension on Google Chrome – Group Policy.Installing the BCR extension on Google Chrome – Manual. ![]()
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