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Header fields are too long for server to interpret

Q&A Forum › Category: ESP32 › Header fields are too long for server to interpret
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Junichi Murata asked 4 years ago

I started from the eBook ESP32-CAM Module 1 to Module 4. up to Module 3 every program was working Ok but when i arrived at Module 4 Unit 1, my mobile phone can not receive images while my computer receive perfectly.The error message on my mobile phone is *Header fields are too long for server to interpret* .    Please help me how to make it on my mobile phone. Thank you in advance.

7 Answers
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Steve Mercer answered 4 years ago

My guess is that you’re using an Android phone with the Chrome browser. From what I can tell Chrome sends extra long headers. I don’t get this error using my iPhone with Safari.
 
One way to fix this (Extremely complicated) is to recompile the ESP core with larger header buffers.
 
An easier way would be to download a different browser for your phone. This would let you continue with the course and revisit this issue, if you need the functionality, later.

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Junichi Murata answered 4 years ago

Steve; i thank you for your information that was proved OK. When the problems are taking place i use IE. Based on your recommendation I changed to Google Chrome then problems ware disappeared instantly.  Again thanks to your information.
 

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Sara Santos Staff answered 4 years ago

Thanks for the answer, Steve.
Regards,
Sara

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Alejandro Santana answered 3 years ago

hi Sara,
I’d like to go the “complicated way”, i.e. recompiling the ESP32 Cam module. Any guidance? ?’d really appreciate some light on this.
Thanks in advance and Happy New Year

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Sara Santos Staff answered 3 years ago

Hi.
I’m sorry, but I didn’t understand your question.
Regards,
Sara

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Alejandro Santana answered 3 years ago

I’d like to recompile ESP32Cam core with larger header buffers, as Steve Mercer suggests in his comment, so that we can get rid of the “Header fields are too long for server to interpret” message

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Sara Santos Staff answered 3 years ago

Hi.
Unfortunately, I don’t know how to do that.
I’m sorry that I can’t help much.
Regards,
Sara

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