--- title: Introduction to Cross Origin Resource Sharing (CORS) description: Cross-Origin Resource Sharing or CORS is an essential part of understanding web infrastructure for developers. In web development practice, it is common for... canonical: https://daily.dev/posts/introduction-to-cross-origin-resource-sharing-cors--jrb4ufpcr twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Introduction to Cross Origin Resource Sharing (CORS) | daily.dev og:description: Cross-Origin Resource Sharing or CORS is an essential part of understanding web infrastructure for developers. In web development practice, it is common for... og:url: https://daily.dev/posts/introduction-to-cross-origin-resource-sharing-cors--jrb4ufpcr og:image: https://api.daily.dev/og/posts/JRB4UFPcR.png og:image:alt: Introduction to Cross Origin Resource Sharing (CORS) og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Introduction to Cross Origin Resource Sharing (CORS) **[Hashnode](https://daily.dev/sources/hashnode)** · 4 min read · 12 upvotes · 1 comments ## Summary Cross-Origin Resource Sharing or CORS is an essential part of understanding web infrastructure for developers. In web development practice, it is common for web apps to separate their front-end from back-end services. We'll also look at related concepts such as the Same-Origin Policy. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Community discussion Top comments from developers on daily.dev. **@beatricebock** · 1 upvotes > Fighting the CORS dragon ## Similar posts on daily.dev - [Don’t just attend KubeCon \+ CloudNativeCon, Merge Forward your experience\!](https://daily.dev/posts/don-t-just-attend-kubecon-cloudnativecon-merge-forward-your-experience--l0rpp73x8) · CNCF · 1 upvotes · 0 comments - [Announcing H2 2026 KCDs](https://daily.dev/posts/announcing-h2-2026-kcds-m96goajm1) · CNCF · 1 upvotes · 0 comments - [Two months of Open Community Groups](https://daily.dev/posts/two-months-of-open-community-groups-asf52zhbs) · CNCF · 0 upvotes · 0 comments - [CNCF Unveils Schedule for KubeCon \+ CloudNativeCon Europe 2026](https://daily.dev/posts/cncf-unveils-schedule-for-kubecon-cloudnativecon-europe-2026-ikhcoa5cb) · CNCF · 2 upvotes · 0 comments - [CNCF Debuts KubeCon \+ CloudNativeCon Japan 2026 Schedule](https://daily.dev/posts/cncf-debuts-kubecon-cloudnativecon-japan-2026-schedule-xp5pyudub) · CNCF · 1 upvotes · 0 comments --- [View this post on daily.dev](https://daily.dev/posts/introduction-to-cross-origin-resource-sharing-cors--jrb4ufpcr) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Introduction to Cross Origin Resource Sharing (CORS)","url":"https://daily.dev/posts/introduction-to-cross-origin-resource-sharing-cors--jrb4ufpcr","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/introduction-to-cross-origin-resource-sharing-cors--jrb4ufpcr"},"datePublished":"2020-10-15T04:06:34.236Z","dateModified":"2021-10-07T14:17:10.317Z","description":"Cross-Origin Resource Sharing or CORS is an essential part of understanding web infrastructure for developers. 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