javascript - SMIL Animate opacity not working -


i trying animate svg path using smil <animate> tag. following code works no problems: 

<animate xlink:href = "#one" attributetype = "css" attributename = "opacity" = "0" = "1" dur = "5s" repeatcount = "indefinite"/>

with opacity of path set 1.0 initially. when set 0 initially, nothing in rendered in browser(firefox, chrome, ie, edge). might causing this? have read these smil tags deprecated. can still use them or css3/jquery/javascript go?


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