I found out what was the cause of the leaks.. it was this NotFound handler:
server.onNotFound({
AsyncWebServerResponse *response = request->beginResponse(SPIFFS, "/404.html");
response->setCode(404);
even if it was not written correctly, this code shouldn't normally run until I request a file that is not found on the server, right? I found it strange that with this code the sketch has memory leaks, even though I only refresh page /test.html
so what's better way? I asked here and got this solution suggested...
oops
the problematic handler looks exactly like yours :smile:
when I use request->send(404, "text/html", "404 Not Found"); it's all good
ok I will do the test
however, I used to been using gzip compression in my project, and when I just updated SDK to the latest, it's all buggy
*have been, damn
I used this scheme: in SPIFFS just GZipped files, delete normal .css/.js . in the SPIFFS static file handlers was normal .js and path to SPIFFS file .js
this worked like charm until I updated
now it sends garbage (plain gzipped text, without decompressing in the browser)
if gzip has errors it would not be recognized and decompressed so it will spit crap
not SPIFFS ;)
I thought the memory might have been corrupted somehow so I even tried another NodeMcu module but with the same result. Then I changed the SPIFFS static handler so that it points to the file .js.gz in the filesystem, then it works a little better, no garbage, but it's a 48kB file and two characters in the javascript are wrong.. instead of quotes there is | character, therefor the script won't work.
I triple checked and reuploaded to the flash but still same, cleaned cache but still sends wrong characters (just the same ones)