I am unable to do a FOTA with the SLM application on a nRF9160. When I try to do a FOTA with the command below, I get a 404 even though I know the URL exists (real host name redacted). For reference, this is on NCS v1.9.1.
AT#XFOTA=1,"http://our.website.com/app_update.bin"
After digging a bit more, I realized that the http_parser_url lib used from Zephyr is returning the file path including the prefixed /. However, it looks like the Nordic download_client library is also adding an implicit / at the beginning of HTTP GET requests. I confirmed that the HTTP GET request was indeed sending up the path //app_update.bin with some added debug logging statements which explains the 404 I was seeing. See: https://github.com/nrfconnect/sdk-nrf/blob/v1.9.1/subsys/net/lib/download_client/src/http.c#L21. As far as I can tell, my usage of the XFOTA AT command follows the examples in the docs here: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/applications/serial_lte_modem/doc/FOTA_AT_commands.html#example
I was able to do a FOTA update by modifying the download_client's GET templates to remove the extra leading /, but this doesn't feel quite right to me, nor a good production solution. I hope I'm missing something simple.
Could I get some input on if I am doing something wrong on my end, and if not if there is a bug here and what a possible fix is?
Thanks!
