Embed iframe in webpage and still allow accessibility mode

I have used an iframe to embed a Office 365 for Business document on LMS.  However, when I click on the menu and choose "Accessibility Mode", I get an error.  Can anyone tell me how to modify the code to allow accessibility mode to work? This is a syllabus for my students so the permissions are set to share but not edit. The code that I am using:

<iframe src="https://johntyler-my.sharepoint.com/:w:/g/personal/jbeyer_jtcc_edu/ES0KzCUqzd5HoC7FmlpVRCQBB27e_UKity4SmBRscen2Sw?e=qXgzi4%20&amp;action=embedview&amp;wdStartOn=1" width="95%" height="400px"></iframe>