When I try to analyse the requests on Yahoo Finance, I see different results when requesting from a browser with Fiddler turned on compared to the same request when Fiddler is turned off. I also tried different capture methods (System Proxy, Network Capture and Browser), but the same occurs. If I use this url:
Opening this url in a Chrome tab with Fiddler turned off, everything works fine (HTTP 200 response). Wih Fiddler turned on, however, the site responds with a HTTP 429 code (Too Many Requests).
Why this is happening?
1 Answer, 1 is accepted
Hello Claudio,
We tried to reproduce the issue, but to no avail. The provided endpoint works as expected with the Fiddler independent browser (using Google Chrome), tested with HTTP/2 enabled (the Yahoo Finance site supports HTTP/2 and TLS 13) on Windows 11 (there is no native support for TLS 1.3 on Windows 10).
Ensure that you have HTTP/2 enabled on your side, and if possible, test from a host that has support for TLS 1.3 (e.g., a device with Windows 11 or the tatest versions of macOS)
With the above configuration, we received 200 OK.
Regards,
Nick Iliev
Progress Telerik
Love the Telerik and Kendo UI products and believe more people should try them? Invite a fellow developer to become a Progress customer and each of you can get a $50 Amazon gift voucher.