same-origin policy

noun

A rule, in web browsers, that permits scripts contained in a first web page to access data in a second web page, but only if both web pages have the same origin (based on URI scheme, hostname, and port number), so as to prevent malicious scripts from accessing sensitive data through the Document Object Model.

Similar
SOP
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Meanings

nounsame-origin policy (plural same-origin policies)

plural same-origin policies

  1. InternetA rule, in web browsers, that permits scripts contained in a first web page to access data in a second web page, but only if both web pages have the same origin (based on URI scheme, hostname, and port number), so as to prevent malicious scripts from accessing sensitive data through the Document Object Model.

    Synonyms: SOP

Synonyms & antonyms

nounA rule, in web browsers, that permits scripts contained in a first web page to access data in a second web page, but only if both web pages have the same origin (based on URI scheme, hostname, and port number), so as to prevent malicious scripts from accessing sensitive data through the Document Object Model.

Similar
SOP
Cite this entry
APA

same-origin policy. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/same-origin%20policy

MLA

“same-origin policy.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/same-origin%20policy. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “same-origin policy,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/same-origin%20policy.

Source: same-origin policy on Wiktionary, CC BY-SA 4.0.