front-end-interview-handbook/packages/quiz/explain-the-same-origin-pol.../en-US.mdx

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title: Explain the same-origin policy with regards to JavaScript
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The same-origin policy prevents JavaScript from making requests across domain boundaries. An origin is defined as a combination of URI scheme, hostname, and port number. This policy prevents a malicious script on one page from obtaining access to sensitive data on another web page through that page's Document Object Model.
## References
- [Front End Interview Handbook](https://www.frontendinterviewhandbook.com/javascript-questions)