CSS Grid layouts get partially or entirely blanked

I reported a bug in Chromium (see https://bugs.chromium.org/p/chromium/issues/detail?id=700383) that appears to be a Window Resizer bug instead. Here’s how to invoke it, at least for me:

1. Go to meyerweb.com in Chrome 57 with Window Resizer installed.

2. Watch the page lay out, then go mostly blank.

3. But not quite—there’s some generated content that gets rendered in the second post (as of the time I write this). I can't drag-select the content, but I don't know if that's due to this bug or for entirely different reasons.

4. If you resize the window, the page will be fully rendered as long as reflow has to happen. Stop the resizing, whether by letting go of the drag handle or just not moving it, and after a second or so the page blanks again.

This happens consistently with Window Resizer enabled. As soon as I disable it, the problem goes away. I’ve tested it where Window Resizer is the only enabled extension, and when all other extensions were enabled, so it does not appear to be an interaction between Window Resizer and another extension.

Let me know if there’s anything else I can do to help out with diagnosis.