SAP Knowledge Base Article - Public

3371582 - CTI Widget Content Blocked


  • You have configured the CTI for telephony and you experience the following error on the CTI widget:
  • This content is blocked. Contact the site owner to fix the issue.
  • Browser's DevTool Console logs will display the error "Refused to frame 'xyz****' because it violates the following...Content Security Policy directive: "frame-src data:"


  • SAP Service Cloud Version 2 1.0
  • SAP Sales Cloud Version 2 1.0

Reproducing the Issue

  1. Add the business service ctiService to the business role to enable CTI.
  2. Enable the application sap.crm.ctiservice.uiapp.ctiAdmin to enable administrators to access the CTI configuration settings.
  3. Enable the application sap.crm.ctiservice.uiapp.cti to enable access to the CTI login and interaction screens.
  4. User then get the following error on the CTI widget, when configured CTI for telephony: This content is blocked. Contact the site owner to fix the issue.


This problem occurs since the provider's domain was not included as stated in the Content Security Policy Settings as a script source.


  1. Identify the CTI URL Provider used (**to ilustrate the next step, let's imagine the URL is
    1. Navigate to your User Menu > Settings>  All Settings >  CTI >  CTI Configuration.
    2. Enter the name of the provider, provider ID, and the provider URL (make sure you are using a valid provider URL)
    3. If the above is not maintained, please do so and save your changes.
  2. Modidy or create a new Content Security Policy
  3. Navigate to your User
  4. Click on Menu > Settings > All Settings > General > Content Security Policy Settings.
  5. Click the '+' button and add the provider domain to the following as a sub-domain (as per the above illustration):
    • Script Source: (Based on the above example, the URL should be *
    • Frame Source: (Based on the above example, the URL should be *

See Also

  • CTI stands for Computer Telephony Integration;
  • This integration enables the system to handle incoming calls, extract information from databases based on phone numbers, and, in certain scenarios, intelligently route calls to specific individuals.
  • It's important to note that, at present, only outbound call are supported.


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SAP Service Cloud Version 2 all versions