# \[solved\] updating header image fails with 403 error

**URL:** <https://www.thethingsnetwork.org/forum/t/solved-updating-header-image-fails-with-403-error/51376>\
**Category:** Campaign pages\
**Created:** [September 8, 2021, 6:16am UTC](https://www.thethingsnetwork.org/forum/t/solved-updating-header-image-fails-with-403-error/51376 "2021-09-08T06:16:12Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![jensileinchen](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/jensileinchen/32/46747_2.png) [@jensileinchen](https://www.thethingsnetwork.org/forum/u/jensileinchen)\
**Post date:** [September 8, 2021, 6:16am UTC](https://www.thethingsnetwork.org/forum/t/solved-updating-header-image-fails-with-403-error/51376/1 "2021-09-08T06:16:13Z")

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hi good morning folks - i have a question regarding the header image of our local ttn-community page … i tried to upload a new jpg. image but this fails with 403 error. is there a special size needed for the image ? or is it limited in kB upload size ? my local browser is latest firefox – thanks in advance for your help !

> # Forbidden (403)
> 
> CSRF verification failed. Request aborted.
> 
> More information is available with DEBUG=True.

my way is the following:  
our story - edit  
update header image

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**Author:** ![jensileinchen](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/jensileinchen/32/46747_2.png) [@jensileinchen](https://www.thethingsnetwork.org/forum/u/jensileinchen)\
**Post date:** [September 8, 2021, 6:23am UTC](https://www.thethingsnetwork.org/forum/t/solved-updating-header-image-fails-with-403-error/51376/2 "2021-09-08T06:23:45Z")

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status update: with EDGE i got the 413 error

> 413 Request Entity Too Large

now its clear for me - the jpg. was to large - i reduced size to 1024 AND 500 kB file size ---- upload was then fine with EDGE browser

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**Author:** ![hebezo](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/hebezo/32/35697_2.png) [@hebezo](https://www.thethingsnetwork.org/forum/u/hebezo)\
**Post date:** [November 4, 2022, 12:53pm UTC](https://www.thethingsnetwork.org/forum/t/solved-updating-header-image-fails-with-403-error/51376/3 "2022-11-04T12:53:50Z")

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I´m gonna hijack that topic. I´m getting the same CSRF error when updating the communication channel or the forum topic. What´s happening here?