[Nobodyman]

Dear Renzo,
what’s about the empty page?
Is there a problem with the compiled modules or with the uploaded HTML files?

[Nobodyman]

Ok, I don´t use it anymore. I use your precompiled binary Aurora_Web_Inverter_Monitor.spiffs.bin instead.
The webpage is still empty.
Even if I upload all files with Arduino IDE the result is the same.

I think the issue it related to aurora-web.min.js.gz. The file is compressed but in index.html I found aurora-web.min.js. How does it work?
If I uncompress the file aurora-web.min.js.gz and start a local websever on my PC the menu is visible! But the uncompressed file doesn´t fit in SPIFFS of the ESP8266!

[Nobodyman]

Thanks a lot for your patience, but it´s a great puzzle for me to get all details.
I used https://github.com/xreef/WiFiManager/archive/refs/heads/master.zip and https://github.com/nailbuster/esp8266FTPServer/archive/refs/heads/master.zip.
Are these the correct libraries and versions?
The result is the same as before with my PlatformIO setup.
The webpage remains empty (blank).
I think it should show a menu on the left. What am I doing wrong?

[Nobodyman]

Great, I tried to set up the project with Arduino IDE 1.8.19 with ESP8266 core 2.4.2 but I still don´t know which WiFiManager library you used.
You are using
setSTAStaticIPConfig(_ip, _gw, _sn, _dns1, _dns2)
but I don´t find any library except ESP_WiFiManager which accepts two DNS servers as parameters.
Please tell me where to get the correct library.
Thank you very much!

[Nobodyman]

Thank´s a lot, but I don´t find any information about which version of the mentioned modules you used.
I set up the project with VSCode and PlatformIO and I´m using the latest available module versions. After some adaptions I compiled and flashed a version and uploaded the files which are needed for the webinterface.
But if I start the webinterface in my browser it only shows a blank page.
If I look at the page source, it´s there.
Any hints what´s going wrong?
Remark: I don´t have a PCB and I used a breadboard for testing. The RS485 interface chip is not connected but this shouldn´t make trouble.

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