When signing in to Tableau Cloud from the Tableau Visualization Lightning Web component (LWC), the following error occurs if the user authentication method is "Tableau with MFA".
"verify.salesforce.com refused to connect"
Or
"sso.online.tableau.com refused to connect." occurs.
When Salesforce Authentication is enabled, users are directed to the sign-in page within an inline frame (iFrame). Salesforce's default Content Security Policy (CSP) may block these redirects within iframes for security reasons.
Use the Tableau View LWC instead of the Tableau Visualization(Viz) LWC. Add the Trusted URL in Salesforce and set up seamless authentication. For more information, see Configuring Tableau Lightning Web Components and Seamless Authentication and Salesforce's Embed Tableau Views to Lightning Pages.
Disable additional Salesforce Authentication method. For more information, see Salesforce Authentication.
Sign into Tableau Cloud directly in a separate tab of the same browser, then refresh and view the Salesforce page.
Change the User Authentication Type from Tableau with MFA to Single sign-on (SSO) methods, such as Salesforce Authentication or SAML. For more information, see Set the User Authentication Type.
001498507

We use three kinds of cookies on our websites: required, functional, and advertising. You can choose whether functional and advertising cookies apply. Click on the different cookie categories to find out more about each category and to change the default settings.
Privacy Statement
Required cookies are necessary for basic website functionality. Some examples include: session cookies needed to transmit the website, authentication cookies, and security cookies.
Functional cookies enhance functions, performance, and services on the website. Some examples include: cookies used to analyze site traffic, cookies used for market research, and cookies used to display advertising that is not directed to a particular individual.
Advertising cookies track activity across websites in order to understand a viewer’s interests, and direct them specific marketing. Some examples include: cookies used for remarketing, or interest-based advertising.