FAPI.UI.showPermissions from JavaScript SDK not working?

Question

Classmates

FAPI.UI.showPermissions from JavaScript SDK does not work. I copy-paste from the documentation to myself:
var permissions = '"PHOTO_CONTENT";"VALUABLE_ACCESS"';
function askSetStatusPermission() {
FAPI.UI.showPermissions("[" + permissions + "]");
}
issues a Bad Request (400) and logs out from classmates.
In this case, for example, users.hasAppPermission or FAPI.UI.showPayment work without problems.

Answer 1

It's better to write like this. And in your example invalid delimiter

FAPI.UI.showPermissions(
    JSON.stringify(
        ["PHOTO_CONTENT","VALUABLE_ACCESS"]
    ));