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Make API Calls from a Chrome Extension | by Shreyas Rana | Medium

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In this guide, I will be going over how you can make API calls from a chrome extension. Developing Chrome Extensions can always be tricky, especially with their many security rules. If you are trying to make API calls from a chrome extension, you might be running into a painful error: According to the MDN Web Docs, Cross-Origin Resource Sharing (CORS) is an HTTP-header based mechanism that allows a server to indicate any origins (domain, scheme, or port) other than its own from which a browser should permit loading resources. CORS also relies on a mechanism by which browsers make a “preflight” request to the server hosting the cross-origin resource, in order to check that the server will permit the actual request. In that preflight, the browser sends headers that indicate the HTTP method and headers that will be used in the actual request. Essentially what this means is that Cross-Origin Resource Sharing allows a developer to request resources from another domain web page. For Chrome E

API Chrome Chrome Extension JavaScript Debugging Make API Calls from a Chrome Extension Shreyas Rana 2 min read · Jan 9, 2022 -- 2 Listen Share In this guide, I will be going over how you can make API calls from a chrome extension. Developing Chrome Extensions can always be tricky, especially with their many security rules. If you are trying to make API calls from a chrome extension, you might be running into a painful error: Access to XMLHttpRequest at from origin has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. According to the MD

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