Why am I getting a 'SyntaxError: Unexpected token < in JSON at position 0' when using fetch?

By: USER5815
29 Agustus 2025 Support 5 minutes
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Question

Grade: Education Subject: Support
Why am I getting a 'SyntaxError: Unexpected token < in JSON at position 0' when using fetch?
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This error often indicates that the server is not returning valid JSON. The '<' token at position 0 usually points to an HTML doctype or an opening HTML tag. Check the server response to see if it's sending HTML instead of JSON, and verify that the server's content-type header is set to 'application/json'.
Answered on 29 Agustus 2025

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