How to locate elements built with flutter and canvas

[dhamo-pk]

I am trying to click on the Privacy policy on this web site - https://m.exeter.ac.uk/acceptCookies

with this code:

cy.visit('https://m.exeter.ac.uk/');
   cy.get('flt-glass-pane')
     .should('be.visible')
     .shadow()
     .find('canvas')
     .scrollIntoView()
     .contains('privacy')
     .should('be.visible');

But I was not able to succeed in my attempt. Please give some hints how I should go about it?
Error:
Timed out retrying after 4000ms: Expected to find content: 'privacy' within the element: <canvas> but never did.