in Readability.js [2041:2050]
_isPhrasingContent(node) {
return (
node.nodeType === this.TEXT_NODE ||
this.PHRASING_ELEMS.includes(node.tagName) ||
((node.tagName === "A" ||
node.tagName === "DEL" ||
node.tagName === "INS") &&
this._everyNode(node.childNodes, this._isPhrasingContent))
);
},