Retrieves the list of errors.

Core class used for handling automatic background updates.

Constructor.

Populates found_comments and max_num_pages properties for the current query if the limit clause was used.

Returns the sanitized value for a given setting from the current customized state.

Prepares setting validity for exporting to the client (JS).

Validates setting values.

Retrieves the data to export to the client via JSON.

Validates an input.

Match redirect behaviour to browser handling.