frenzy/lib/frenzy/pipeline/extractor/util.ex

29 lines
797 B
Elixir

defmodule Frenzy.Pipeline.Extractor.Util do
@doc """
WordPress Jetpack uses a 1x1 pixel transparent gif in a srcset to keep browsers from loading images
by overriding the src attribute. We want to strip those so the images actually load.
"""
@spec strip_wp_lazy_loading(Floki.html_tree()) :: Floki.html_tree()
def strip_wp_lazy_loading(tree) do
Floki.map(tree, fn
{"img", attrs} = el ->
class = Enum.find(attrs, fn {k, _} -> k == "class" end)
if !is_nil(class) && String.contains?(elem(class, 1), "jetpack-lazy-image") do
{
"img",
Enum.filter(attrs, fn
{"srcset", _} -> false
_ -> true
end)
}
else
el
end
el ->
el
end)
end
end