[feature] Visual Selector - offer to "just tell me when this text is no longer on the page" filter

[dgtlmoon]

Very often I can see that people are using the visual selector to follow some HTML element, but then what happens is that the page will change structure (like when the website has more stock available) and then the element they have clicked on can no longer be found by the automatically generated xPath

What would be better is to have the visual selector ask "Should I alert you when this text is no longer present on the page?" instead of locking in a very fragile xPath filter

for example. people use the VisualSelector for choosing the element of

containing "sold out" or "no results found"

implementation

• xpath scraper can have an extra attribute "has-unique-text", it would only offer the solution if the text is unique
• something like restock detector but "text detector"