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CORS, Preflight Requests, and Common Cross-Origin Issues
If you've been developing web apps for a while, there's a 99% chance you've encountered a CORS issue at least once. If you're a beginner, you probably found a one-line fix by Googling the exact error and moved on with your task. Today, with AI tools, you don’t even have to leave your IDE to get a solution. But did you truly understand what the fix did? Why did the issue occur in the first place? If not, I promise that by the end of this post, you will. Let’s dive in!
If you've been developing web apps for a while, there's a 99% chance you've encountered a CORS issue at least once. If you're a beginner, you probably found a one-line fix by Googling the exact error and moved on with your task. Today, with AI tools, you don’t even have to leave your IDE to get a solution.
But did you truly understand what the fix did? Why did the issue occur in the first place? If not, I promise that by the end of this post, you will.
Let’s dive in!
