visual studio 2015 - SharePoint Online Integrated Workflow Task List Permission Break -


i working on sharepoint integrated workflow in visual studio 2015. workflow manually attached list after deploying app.

i want break task list permission user contributor permission can not approve task. when attaching cannot select task list in host web , in workflow cannot app web url access task list reside in app web(to break permission using rest).if can attach task list in host web, can accessed inside workflow.

please let me know if there solution, or dependable source saying not possible.

thanks in advance.

to task list inside app-web can use http:// server-name/app-name/lists/listname