Resizable: with helper, dragging horizontally or vertically only reduces opposite direction by 1px

This regressed in 1.10.0.

Here's it working in 1.9.2: http://view.jqueryui.com/1.9.2/demos/resizable/helper.html

Here's it failing in 1.10.0: http://view.jqueryui.com/1.10.0/demos/resizable/helper.html

The last commit to touch the line of code you reference landed in 1.10.0, which seems pretty suspicious: https://github.com/jquery/jquery-ui/commit/d73edfff.

We also noticed this bug today. A fix would be very welcomed as this can really break things.

Here's a small function that we use as a temporary fix, maybe it helps someone else. Thanks for the tip with the grid.

It won't help with elements that can be resized in both directions, but then 1 pixel difference might not be a big problem anyway.

function gridFix(handles) {
    var isHorizontallyResizable = handles.indexOf('e') >= 0 || handles.indexOf('w') >= 0,
        isVerticallyResizable = handles.indexOf('n') >= 0 || handles.indexOf('s') >= 0,
        grid = [2, 2];

    if (isHorizontallyResizable) {
        grid[0] = 1;
    }

    if (isVerticallyResizable) {
        grid[1] = 1;
    }

    return grid;
}

elem.resizable({
    "handles": handles,
    "helper": true,
    "grid": gridFix(handles)
});

Resizable: Remove mysterious helper dimension adjustments

Fixes #11113

Closes gh-1615

Changeset: 7df2f1905a1ec4727f00451f8d794aeb35ec4159