When switching browser window sizes, the HR Case Todo list in portal, the back button (sections) is missing/hiddenDescriptionWhen switching browser window sizes, the HR Case Todo list in portal, the back button (sections) is missing/hiddenSteps to Reproduce 1. Open any Todo task from the HR Case page (hrm_ticket_page)(Impersonate any user who has open to-do tasks)2. In the Tasks/To-Dos tab, just open any pending task,3. Make the browser window smaller. Re-size it as narrow as you could, the task detail will be moved to the bottom of the page.4. Sign and/or complete the task5. Now, don't press anything on the page, just scroll up, you will see a back button. Don't press it.6. Re-size the browser window back to normal, the back button, including the section below it, will be gone. Looks like the whole part got hidden. Left the user with nothing to click on the page and had to refresh the page.WorkaroundAdd the below mentioned code block in client script area of 'HRM Todos Summary' widgetWidget name - HRM Todos Summary (hrm-todos-summary)Location - Client script------Code------var resizeTime;var resizeTimeout = false;var delta = 500;$window.addEventListener('resize', function(event){resizeTime = new Date();if (resizeTimeout === false) {resizeTimeout = true;$timeout(isMobileDevice, delta);}});function isMobileDevice(){if (new Date() - resizeTime < delta) {$timeout(isMobileDevice, delta);} else {c.mobileDevice = c.data.isMobile || ($window.innerWidth < 767);resizeTimeout = false;}}Adding the above code will invalidate 3 RCA records, change them to 'Allowed' state for the code to work properlyNote: We do not recommend making changes to OOB code as it might cause problems during updateRelated Problem: PRB1479591