allowReferers

An optional list of allowed HTTP referers for which requests must originate from. Requests using this API key from other domains will not be allowed.

Requirements:

• Contain only alphanumeric characters (A–Z, a–z, 0–9) or any symbols in this list $\-._+!*(),;/?:@=&`

• May contain a percent (%) if followed by 2 hexadecimal digits (A-F, a-f, 0-9); this is used for URL encoding purposes.

• May contain wildcard characters question mark (?) and asterisk ().Question mark (?) will replace any single character (including hexadecimal digits).Asterisk () will replace any multiple characters (including multiple hexadecimal digits).

• No spaces allowed. For example, https://example.com.