When loading the fragments into the diff viewer page, we used

innerHTML in order to gain a slight performance boost. When using

rendered review UI content for binary files, the contents often contain

<script> tags, and just setting innerHTML doesn't work for this.

JQuery's $.html() method checks for these and changes its behavior to

do the right thing.

Ran js-tests.
Added a file attachment for an image file in a diff. Saw that the

  image review UI was rendered into the diff entry for that file.