options toggling on Edge

[gordonwoodhull]

Loading e.g. the Simple Viewer or the Arrow Designer, any checkbox which is checked based on the defaults or query string will be toggled each time the page is loaded, rather than just taking the value.

50/50 chance the checkbox won't match the actual value (or 25% considering it is only a problem if the value is true).

Maybe it has to do with saved state for page? But why would

                            $(opt.selector)
                                .prop('checked', val);

toggle instead of just setting the checkedness?