lazyBlock | Conditionally load content in responsive designs

For 1) and 2) (delay unrelated) your issue is that your comparison let text= uses the current html, not the original htmltochange.

After a search, the current html now has tags.

So if you search for " is " your html changes from This is the to This is the - when you then search for " is the" it doesn't match on is the.

Instead of .html(), use .text() to get the text without the markup, then it works fine (that part at least, not checked the rest, eg also change the original htmltochange). It also means you don't get false-positives, eg search for "div" in your original code, "div" appears in the html for every answer, so they're all shown.