Should we expose an official version of Fx.hover that works for all subplot types?

Hello,

I recently switched my app from using scatter to scattergl and realized that the Fx.hover method does not work correctly for that plot type. This codepen shows that the change to scattergl breaks the hover call. I did not see this listed anywhere as a gl2d limitation so I wanted to get it out there. I also realize that the plan is for Fx to be removed in the future however I was hoping there may be some plan to amend the hover method to work with scattergl.

A quick look through made it seem like one of the sticking points is that the hover method is looking for a "hoveron" field in the trace which is not present for scattergl. It is then set to an empty string and the hover code moves on without looking for any points to execute the hover on.

Thanks!

先使用 scatter 和 scattergl 重現連結的 CodePen，然後檢查現有的 Fx.hover 進入點，以及它如何處理 trace 的 hoveron 欄位。釐清專案是否需要支援所有 subplot 類型的官方 hover API，並將完成條件定義為 scattergl 具備一致的 hover 行為，而不依賴未記載的限制。