The great news for Citrix Workspace is that the GPU can be used to encode the actual HDX protocol coming back to the end user which reduces both Server and Client CPU even further. This is a feature that went live with XenDesktop 7.16 VDA s, though I'd be remiss if I didn't point out just as I did last week, that 7.16 is Current Release and has.

Applicable Products

• Receiver for HTML5
• Receiver for Chrome

Symptoms or Error

Connection to StoreFront/VDA will fail and may show cannot connect to server error or some SSL Certificate error in console logs. One of the reason could be invalid SSL certificate.

Applicable Products:

Citrix Receiver for HTML5, Citrix Receiver for Chrome, Citrix Workspace app for Chrome, Citrix workspace app for HTML5

Solution

Recommended solution: Update the certificates.

Alternatively, you can try this workaround:

1. Close the Citrix Workspace app for Chrome / Citrix Receiver for Chrome.

2. Open Chrome browser in your Chromebook.

3. Visit your site.
   

4. It will show some error as below.

Now, open the Citrix Workspace app for Chrome or Citrix Receiver for Chrome and it might allow you to access your StoreFront/VDA.

Other possible workaround for specific certificate error:

1. NET::ERR_CERT_WEAK_SIGNATURE_ALGORITHM error
   Latest Firefox and Chrome browsers do not support SHA-1 certificate and StoreFront connection fails with error: NET::ERR_CERT_WEAK_SIGNATURE_ALGORITHM
   Citrix Receiver for Chrome/HTML5 or Citrix Workspace app for Chrome/HTML5 cannot establish secure connection and session launch will fail
   

2. NET::ERR_CERT_COMMON_NAME_INVALID error
   Chrome requires Subject Alternative Name for SHA-2 certificate, without SAN (Subject Alternative Name) in the SHA-2 certificate, the connection will fail with error NET::ERR_CERT_COMMON_NAME_INVALID
   Session launch fails with CERT_COMMON_NAME_INVALID(-200) error dialog
   Workaround for NET::ERR_CERT_WEAK_SIGNATURE_ALGORITHM and
   NET::ERR_CERT_COMMON_NAME_INVALID:

   • Mozilla:

     Enable network.websocket.allowInsecureFormHTTPS from about:config

   • Chrome:
     Chrome by default requires SHA2 Certificate with Subject Alternative Names (SAN)
     Add the following registry keys at : SoftwarePoliciesGoogleChrome

   • EnableCommonNameFallbackForLocalAnchors – true
     (Note: Chrome need SAN by default)

   • EnableSha1ForLocalAnchors – true
     (Note: SHA1 is not supported)
     Recommended Solution: Use SHA2 certificates with Subject Alternative Names (SAN).

     Problem Cause:

   • CTX134123 - Receiver for HTML5 - Unable to Launch Apps Using HTTPS URL

   • CTX217352 - How to Collect Logs in Receiver for Chrome and Receiver for HTML5

3. NET::ERR_CERT_SYMANTEC_LEGACY
   From Chrome OS version 66 onwards the SSL certificate from Symantec is distrusted. You can go through https://security.googleblog.com/2018/03/distrust-of-symantec-pki-immediate.html to know more about it.
   Workaround: Try general workaround mention above.
   Recommended Solution: Update SSL certificates.

Problem Cause

• CTX134123 - Receiver for HTML5 - Unable to Launch Apps Using HTTPS URL

• CTX217352 - How to Collect Logs in Receiver for Chrome and Receiver for HTML5

downloadWhy can't I download this file?

Applications running in background app screen blanks out.
Steps to Reproduce:

1. Open some application. Eg: Browser, text editor.
   

2. Open Citrix Workspace app for Chrome or Citrix Receiver for Chrome and then Launch App/Desktop.
   

3. Background Application goes blank. i.e. either the browser or Citrix receiver for Chrome / Citrix Workspace app for Chrome storefront page.
   

Applicable Products

Citrix Workspace app for chrome earlier known as Citrix Receiver for Chrome and older versions of Citrix Receivers for Chrome.

Citrix Workspace Chrome Multiple Monitors

Solution

Workaround: Clicking on the blank screen brings back the content of the application.

Roll back to Chrome OS version 66.

Problem Cause

Citrix Workspace Chrome Logging

This issue is the result of a bug introduced in Chrome OS 67 by Google. Track Bug here.