implement hovertemplate for Sankey traces #3269

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1. antoinerg

   changed the title [-][sankey] allow custom HTML code in hoverinfo[/-] [+]implement `hovertemplate` for Sankey traces[/+] on Nov 20, 2018
2. antoinerg

   added

   featuresomething newsomething new

   on Nov 20, 2018
3. antoinerg commented on Nov 20, 2018

   

   antoinerg

   on Nov 20, 2018

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   By adding support for hovertemplate to Sankey traces, we would have support for formatting with HTML pseudo-code and access to the different variables of interest to completely control the content of hover boxes.

   See PR #3126 for details on hovertemplate
4. alexcjohnson commented on Nov 21, 2018

   

   alexcjohnson

   on Nov 21, 2018

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   There's also #1663

   BTW I notice pseudo-HTML is currently honored (in its current limited way) in sankey hover labels but not the node labels:
   
5. antoinerg

   self-assigned this

   on Nov 21, 2018
6. antoinerg commented on Nov 22, 2018

   

   antoinerg

   on Nov 22, 2018

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   Nice catch @alexcjohnson !

   Actually the pseudo-html works in hover labels but not on the node labels that are always displayed.
7. antoinerg

   closed this as completedin #3284on Dec 7, 2018