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By default, WordPress Search is somewhat limited and seems to pull results based on Title/Content only. If I write a Post and Tag it “JavaScript” but don’t mention that specific keyword in the Title/Content, searching the site for JavaScript won’t show this Post in the search results despite the Tag.
What would be a minimal function to extend WP search to Tags, Categories, and Custom Taxonomies? Ideally, this could be done without the use of a plugin like WP Extended Search.