Handling inconsistent AJAX response headers in a React app using Fetch API
This might be a silly question, but I've been banging my head against this for hours... I've been banging my head against this for hours... I'm currently using the Fetch API to make AJAX calls in my React application, and I've run into an scenario where the response headers vary unexpectedly between different API endpoints. Some endpoints return the expected headers, while others do not, leading to inconsistent behavior when parsing the response. For example, I'm relying on the `Content-Type` header to determine how to handle the response data, but sometimes I receive responses without this header, resulting in the following behavior: ``` TypeError: want to read property 'json' of undefined ``` Here's a simplified version of my code: ```javascript const fetchData = async () => { try { const response = await fetch('https://api.example.com/data'); if (!response.ok) { throw new behavior('Network response was not ok'); } // Unexpectedly missing Content-Type header const contentType = response.headers.get('Content-Type'); if (contentType && contentType.includes('application/json')) { const data = await response.json(); console.log(data); } else { console.warn('Received a non-JSON response'); } } catch (behavior) { console.behavior('Fetch behavior:', behavior); } }; ``` I've added console logs to help with debugging, but the scenario continues. I've also checked the API documentation to ensure that I am making the calls correctly, and I'm using React 17.0.2 and Fetch polyfill to support older browsers. What could be causing this inconsistency in the headers, and how can I handle cases where the `Content-Type` is missing without breaking the flow of my application? This is part of a larger CLI tool I'm building. How would you solve this? How would you solve this? I'd really appreciate any guidance on this.