51.
___________ is used to test whether geolocation is supported in old browsers.

52.
____________ is a resource loader (CSS and JavaScript) that was made to specifically to work side-by-side with Modernizr.

53.
In case we want to implement a JavaScript fallback, we would need to create a conditional statement using Modernizr.

54.
Metadata store information about the web page that is not necessarily visible to end users.

55.
In which part of the HTML metadata is contained?

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