This step is only required if the response from the 3DS Auth API (Step 3) indicates the challengeRequired
property is true
. Inside this response will be another redirectUrl
property.
There are two possible flows:
ACS challenge iframe
Full browser redirect to ACS challenge page (If a merchantRedirectUrl was provided in the Init Call in Step 1)
ACS challenge iframe
If a merchantRedirectUrl was not supplied, create an iframe to contain the ACS challenge.
Set up iframe html
Use the redirectUrl
as the src
property.