200 responses on localhost, 404 responses on Netlify

[sid.m]

You’ll want to reference #2 in this support guide re: adding a SPA redirect rule:

[Support Guide] I’ve deployed my site but I still see "Page not found”

Last reviewed by Netlify Support - April, 2024 Netlify attempts to look up a file based on several XOR filters, and when all of these fail, we end up serving a 404 page. For example, a request made to /example/ would check /example/index.html, /example.html, /example/home.html and several other combinations (not necessarily in the same order) before hitting the 404. However, in case you were not expecting a 404 at a particular URL, you might be interested in finding out the reason and potentia…