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Issue created by Administrator@rootContributor

Feature request: make ScrollSpy's use of offset() or position() configurable.

Created by: jcheroske

I have a situation where, due to the use of absolute and relative positioning, as well as translateZ() and scale(), jquery's position() is returning 0. Because the data-spy="scroll"element is not the <body>, scrollspy.js is using position() and not offset(). Commenting out the following from scrollspy.js:

    if (!$.isWindow(this.$scrollElement[0])) {
      offsetMethod = 'position'
      offsetBase   = this.$scrollElement.scrollTop()
    }

restores perfect behavior. I would like to see a scrollspy option that allows the use of either offset() or position() to be forced. (I know the offset/position thing has come up multiple times. Sorry if I'm stirring up old wounds.)