User blog comment:BertH/Fluid Editor Preview is now available/@comment-452-20131202180405

I just tested the preview width against the actual width at various resolutions, and it's only correct for the "current" width, and that's only if my browser is maximised (1280px)

It's incorrect at both 784px and 1024px, which are the two "minimum" widths.

Examples:
 * File:Fluid_preview_test_-_preview_-_minimum_1024px.png
 * File:Fluid_preview_test_-_saved_-_window_1024px.png
 * File:Fluid_preview_test_-_preview_-_minimum_784px.png
 * File:Fluid_preview_test_-_saved_-_window_784px.png
 * File:Fluid_preview_test_-_preview_-_minimum.png