It works correctly in my localhost. The error is only on another server.
When I run this application from another server, getting a blank page, as shown below,

But api work correctly. The destination page and no other pages receive.
This problem started from today. In previous days there are no problems on this server.
All pages display only "304 Not Modified" status. Undefined pages also show "304 Not Modified" instead of "404 not found."
Please help me fix this problem.
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