431 Request Header Fields Too Large

[urskog84]

Describe the bug
431 Request Header Fields Too Large is returnd from app

We are using the homer app in Azure "Web App" with Authentication turned on.. this reults in a 431 http respone from the app. ex request is

RAW request hedadr

GET /assets/icons/favicon.ico HTTP/1.1
Accept: image/avif,image/webp,image/apng,image/svg+xml,image/*,*/*;q=0.8
Accept-Encoding: gzip, deflate, br, zstd
Accept-Language: en,sv-SE;q=0.9,sv;q=0.8,en-US;q=0.7,nb;q=0.6
Connection: keep-alive
Cookie: AMCVS_5835419354FA11B60A4C98A4%40AdobeOrg=1; AMCV_5835419354FA11B60A4C98A4%40AdobeOrg=179643557%7CMCIDTS%7C19789%7CMCMID%7C45151563924133368641427991226118492890%7CMCAAMLH-1710341737%7C6%7CMCAAMB-1710341737%7CRKhpRz8krg2tLO6pguXWp5olkAcUniQYPHaMWWgdJ3xzPWQmdj0y%7CMCOPTOUT-1709744137s%7CNONE%7CMCAID%7CNONE%7CvVersion%7C5.5.0; rr_rcs=eF4FwcERgCAMBMAPL3vJTPDgIB3YBhIy48OfWr-7abu_53JmpUluag00kFTZTUgA6Z0H5wqGn1JGrVL2WaX7GBJO9KoBtPUDvZ0TEA; sg_cookies={%225620129%22:{%22192521139%22:[11312700]%2C%22192522315%22:[11314745]%2C%22192522462%22:[11315109]%2C%22192522822%22:[11315837]%2C%22192524282%22:[11318465]%2C%22192524663%22:[11319165]%2C%22192524856%22:[11319499]%2C%22192525274%22:[11320370]%2C%22192525280%22:[11320378]%2C%22192525281%22:[11320379]%2C%22192525282%22:[11320380]%2C%22192525322%22:[11320434]%2C%22192525391%22:[11320576]%2C%22192525427%22:[11320652]%2C%22192525434%22:[11320664]%2C%22192521139_ch%22:1%2C%22192522315_ch%22:1%2C%22192522462_ch%22:1%2C%22192522822_ch%22:1%2C%22192524282_ch%22:1%2C%22192524663_ch%22:1%2C%22192524856_ch%22:1%2C%22192525274_ch%22:1%2C%22192525280_ch%22:1%2C%22192525281_ch%22:1%2C%22192525282_ch%22:1%2C%22192525322_ch%22:1%2C%22192525391_ch%22:1%2C%22192525427_ch%22:1%2C%22192525434_ch%22:1%2C%22rf%22:%22%22%2C%22lv%22:1709736936894%2C%22pv%22:2%2C%22pv_p%22:{%22192521139%22:2%2C%22192522315%22:2%2C%22192522462%22:2%2C%22192522822%22:2%2C%22192524282%22:2%2C%22192524663%22:2%2C%22192524856%22:2%2C%22192525274%22:2%2C%22192525280%22:2%2C%22192525281%22:2%2C%22192525282%22:2%2C%22192525322%22:2%2C%22192525391%22:2%2C%22192525427%22:2%2C%22192525434%22:2}%2C%22tv%22:1%2C%22tv_p%22:{%22192521139%22:1%2C%22192522315%22:1%2C%22192522462%22:1%2C%22192522822%22:1%2C%22192524282%22:1%2C%22192524663%22:1%2C%22192524856%22:1%2C%22192525274%22:1%2C%22192525280%22:1%2C%22192525281%22:1%2C%22192525282%22:1%2C%22192525322%22:1%2C%22192525391%22:1%2C%22192525427%22:1%2C%22192525434%22:1}}%2C%22_g%22:1}; AppServiceAuthSession=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

Logs & errors
If i look in the continer loggs i get..

024-03-07T15:59:09.639877799Z 2024-03-07 15:59:09: (../src/h1.c.413) oversized request-header -> sending Status 431
2024-03-07T15:59:09.643754256Z 2024-03-07 15:59:09: (../src/h1.c.413) oversized request-header -> sending Status 431
2024-03-07T15:59:09.679285979Z 2024-03-07 15:59:09: (../src/h1.c.413) oversized request-header -> sending Status 431
2024-03-07T15:59:09.683539342Z 2024-03-07 15:59:09: (../src/h1.c.413) oversized request-header -> sending Status 431
2024-03-07T15:59:09.688917421Z 2024-03-07 15:59:09: (../src/h1.c.413) oversized request-header -> sending Status 431
2024-03-07T15:59:09.689993537Z 2024-03-07 15:59:09: (../src/h1.c.413) oversized request-header -> sending Status 431