[html] fix convertLazyLoading: set img src to valid single url #4743
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$img->src
inconvertLazyLoading
is currently being set to an array of all srcset values. That is an invalid value.src
must be a single url.This PR splits the existing
parseSrcset
intoparseSrcset
withoutreturn_largest_url
andparseSrcsetLargestImageUrl
to make the intention more clear.convertLazyLoading
now usesparseSrcsetLargestImageUrl
.convertLazyLoading
is mainly used byCssSelectorBridge
andCssSelectorFeedExpanderBridge