The hdx applications are enumerated in the secure hub store but while launching the application we get error : "Unsupported file type : the provided ica file is malformed or otherwise invalid. Please ensure that the product you are using for launching is correct. Contact you administrator for assistance. " 

Below is the snapshot for the error message.


Note: The application is launching successfully in receiver .

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• Verify the configuration from this article: https://support.citrix.com/article/CTX207187 ​
• Verify the test connectivity from the XenMobile Console under Settings -> XenApp/XenDesktop.
• Ensure that the STA on Netscaler Gateway for the storefront is up and green.
• Ensure that under Configure remote access settings - The default appliance is the Netscaler Gateway.
• StoreFront server must be set as an advanced policy to route all HDX traffic through the NetScaler Gateway on-premise.

To do this, your StoreFront server, you can run powershell command for older version of storefront

 Open PowerShell with administrative privileges and run the following commands.

• Set-ExecutionPolicy Unrestricted( Type yes when prompted)

• cd "C:\Program Files\Citrix\Receiver Storefront\Scripts"

• \ImportModules.ps1

• Set-DSOptimalGatewayForFarms -SiteId 1 -ResourcesVirtualPath <ResourcesPath> -GatewayName <GatewayName> -Hostnames @("<GatewayFQDNs>") -StaUrls @("StaUrls") -Farms @("ControllerNames") -EnableSessionReliability $true -EnabledOnDirectAccess $true
  
  Here’s an explanation for the parameters in the command above:

  • Resource Path = /Citrix/<Name of the newly created Store e.g. Store2>

  • GatewayName = Specify gateway name. It can be any value e.g.,. “OptimalNSG”

  • Gateway FQDNs= FQDN of the existing NetScaler Gateway virtual server in your datacenter that is being used for accessing XenApp/XenDesktop.

  • STAURL= Comma delimited list of URLs of the existing STA used with XenApp/XenDesktop (typically the XenDesktop Delivery Controller or the XenApp server) “https://StaFQDN/scripts/ctxsta.dll”

  • ControllerNames=Comma delimited list of the display names of the delivery controllers used with this store. See screenshot.

    • To get the list of controller names, open the Citrix StoreFront admin console.

    • Click Stores, select the store (i.e. Store2) and click Manage Delivery Controllers from the Actions menu in the RHS.

    • Get the name of the delivery controllers from the Name column.

-staUrls (String Array) Specifies the URLs for XenDesktop, XenApp, and VDI-in-a-Box servers running the Secure Ticket Authority (STA). If using multiple farms, list the STA servers on each using a comma separated list:
Example: StaUrls @("http://addc02.test.no/scripts/ctxsta.dll","http:/addc01.test.no/scripts/ctxsta.dll")

 
For the new versions of StoreFront  we can skip running the powershell command and this can be done using the GUI . 
On Storefront configure store settings-> optimal HDx routing , select gateway and add controllers . 
Here the gateway is the netscaler gateway which in case would be NS_CitrixCloud and select controllers  . 
 
Here is a screenshot in this example we have only one controller you can choose both of your controller and click on OK.

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Problem Cause

• The Default appliance was not the Netscaler gateway.
• If using multiple farms, list the STA servers on each using a comma separated list:Also the STA servers were not added in proper syntax 

Example: "http://xenapp-a.ptd.com/scripts/ctxsta.dll","http://xendesktop-a.ptd.com/scripts/ctxsta.dll" .

This article summarizes the steps to follow if we get an error While launching HDX applications from WorxStore: "Unsupported file type : the provided ICA file is malformed or otherwise invalid. Please ensure that the product you are using for launching is correct. Contact you administrator for assistance."

Verify the configuration from this article: https://support.citrix.com/article/CTX207187
https://docs.citrix.com/en-us/storefront/2-6/dws-manage/dws-configure-ha/dws-configure-ha-optimal.html