updated plugin W3 Total Cache
version 2.7.0
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@ -200,7 +200,7 @@ class UserExperience_LazyLoad_Mutator {
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preg_match( '~background(-image)?:\s*(url\([^>]+\))~is', $v, $url_match );
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$v = preg_replace( '~background(-image)?:\s*url\([^>]+\)[;]?\s*~is', '', $v );
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return $v1 . $v2 . $v . $quote . ' data-bg=' . $quote . $url_match[2] . $quote;
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return $v1 . $v2 . $v . $quote . ' data-bg=' . $quote . ( isset( $url_match[2] ) ? $url_match[2] : '' ) . $quote;
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}
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