_targetIsRTL is getting called for every icon causing a performance hit

PolymerElements / iron-iconset-svg

Represents a source of icons expressed as a collection of inline SVGs

https://www.webcomponents.org/element/PolymerElements/iron-iconset-svg

37 stars 34 forks source link

_targetIsRTL is getting called for every icon causing a performance hit #57

Open helenxywu opened 7 years ago

helenxywu commented 7 years ago

when mirroring icons is turned on, _targetIsRTL is getting called for every icon on the page. Because the logic in targetIsRTL contains getComputedStyle, there is a performance hit for running this on too many items in the page.