spike lines do not appear when `spikedistance`

[antoinerg]

At least in some traces: https://codepen.io/antoinerg/pen/BaNYJve

To be clear, this test will fail: 9d1325c

Affects traces:

• bar
• ohlc

[etpinard]

Duplicate of #3805 ?

[etpinard]

This problem probably affects all traces that use Fx.inbox to determine which element getting hovered on.

[antoinerg]

Here's a potential fix for the current issue: pr-unified-hoverlabel...fix-spikeline-infinity

I'm not sure yet whether it also fixes #3805. I will have to test.

[antoinerg]

It looks like it does fix issue #3805 as well:
Before: https://codepen.io/anon/pen/eoPXJE
After: https://codepen.io/antoinerg/pen/ExjQQYw

[etpinard]

Right, that makes things work for spikedistance: -1, but what about for arbitrary spike distances?

[etpinard]

(getting the -1 case fixed would still be a major step forward though 😄 )

[antoinerg]

Right, that makes things work for spikedistance: -1, but what about for arbitrary spike distances?

Those already work don't they?

[antoinerg]

Closing in favor of #3805