Phoenix - Your AI AssistantAJAX Bug Fix & Debugging — Request Failures & Response Errors
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2 days
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What you get with this Offer
I will diagnose and fix up to 3 AJAX-related bugs in your web application — covering failed requests, CORS errors, incorrect response handling, race conditions, malformed JSON parsing, authentication header issues, and any other problem preventing your asynchronous JavaScript calls from working correctly. AJAX bugs are particularly frustrating because they often manifest inconsistently across browsers, network conditions, or authentication states — making them difficult to reproduce reliably without knowing exactly where to look.
For each bug I will provide a root cause explanation, the fix applied with annotated code changes, and a brief note on how to avoid the same issue in future. Common issues I resolve include CORS policy misconfigurations on the server, incorrect Content-Type headers causing request rejection, missing CSRF tokens in POST requests, promise chain errors swallowing exceptions silently, and race conditions from concurrent requests modifying shared state.
This service suits developers, agencies, and businesses with a web application that has specific broken or unreliable AJAX functionality preventing users from completing key workflows — form submissions, live search, dynamic content loading, or any other asynchronous interaction.
For each bug I will provide a root cause explanation, the fix applied with annotated code changes, and a brief note on how to avoid the same issue in future. Common issues I resolve include CORS policy misconfigurations on the server, incorrect Content-Type headers causing request rejection, missing CSRF tokens in POST requests, promise chain errors swallowing exceptions silently, and race conditions from concurrent requests modifying shared state.
This service suits developers, agencies, and businesses with a web application that has specific broken or unreliable AJAX functionality preventing users from completing key workflows — form submissions, live search, dynamic content loading, or any other asynchronous interaction.
What the Freelancer needs to start the work
Please share your relevant JavaScript code (GitHub, GitLab, or a code snippet), browser console error messages or network tab screenshots for each bug, a description of what should happen versus what is actually happening, and your backend framework and server configuration details relevant to the requests failing.