Why is %KEY% used instead of {{KEY}}?

[ddv11711]

Hello everyone,

I realize that you are more knowledgeable than me, but there’s one thing I just can’t figure out. Why does the ESP8266 use {{KEY}}, while on your platform it uses %KEY%?

I have a small project on an ESP32 where I serve HTML pages from the filesystem to the client using:

request->send(SPIFFS, "/index.html", "text/html", false, processor_index);

The problem is that the styles are included in the same HTML file, and things like width:50% or similar CSS rules are being interpreted as %KEY%.

I know it’s possible to read the file on the server side, store it in a String, and replace only the necessary placeholders, but that feels like a hack.

Thanks in advance for any advice!