Quick Answer
By default, browsers block cross-domain AJAX (Same-Origin Policy). Solutions: server must send CORS headers (Access-Control-Allow-Origin). For jQuery JSONP (legacy): dataType: "jsonp" in $.ajax - works by injecting a script tag, not true AJAX. Modern solution: configure CORS on the server and use standard $.ajax with JSON. JSONP only supports GET and is insecure.
Answer
Same-origin policy blocks external requests. Solutions: • CORS enabled by server • JSONP for GET requests Allows safe cross-domain communication.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
