How to make an AJAX call to an external domain that makes public data available.

Question

I need to make an AJAX call to an external domain that makes public data available. **What should I make sure before coding this call**?

Accepted Answer

I make sure that the interrogated server allows external AJAX calls.

Accepted Answer

I check in the documentation if the server requires token authentication.

Answer

I check that the domain queried is in HTTPS.

Answer

To avoid unpleasant surprises, I decide to use the `JSONP` format.

Answer

I should imperatively make an asynchronous call so as not to block the server.

Answer

I make sure I loaded *jQuery* or *jqLite* on my page.

Question from the Javascript test