Compare the submitted URL: https://www.google.com/?q=x*sin(y) with: https://www.google.com/search?q=x*sin(y) The resource is still the index page, n

Compare the submitted URL: https://www.google.com/?q=x*sin(y) with: https://www.google.com/search?q=x*sin(y) The resource is still the index page, not /search for the search results page; the query is simply prepopulated.