HTTPS support on Pico!

Ok, so I do the following:

• Copy/paste example to right-hand side of IDE
  
• change Wifi credentials
  

• upload. It says:

  Saving key
  Saving cert
  Saving ca
  Done!
  

• type 'onInit()'. It says:

  >onInit()
  =undefined
  Connecting to WiFi
  192.168.1.117
  

Wait a minute, and it says:

Connecting to Google
Connecting with TLS...
Loading the CA root certificate...
Loading the Client certificate...
Loading the Client Key...
ERROR: Failed! mbedtls_ssl_setup: Not enough memory
ERROR: Unable to create socket
Connecting with TLS...
Loading the CA root certificate...
Loading the Client certificate...
Loading the Client Key...
Performing the SSL/TLS handshake...

(so it fails)

• wait another minute, and I get:

  Connecting to Google
  Connecting with TLS...
  Loading the CA root certificate...
  Loading the Client certificate...
  Loading the Client Key...
  Performing the SSL/TLS handshake...
  >Verifying peer X.509 certificate...
  Connected to Google
  Google connection closed, 6294 bytes received
  

So it works - but it's properly tight on memory.

What's happening is the first time it's got the command history and other stuff in memory, and it tries to allocate everything it needs but it can't find enough continuous space, even after it's freed everything.

Next time the history's already been freed so it's able to 'fill the gaps' while executing, leaving a much larger contiguous amount of memory.

I just modified onInit as follows, and it works first time:

function onInit() {
  clearInterval();
  // initialise the ESP8266, after a delay
  setTimeout(function() {
    // try and free some memory
    delete fwrite;
    delete onInit;
    global["\xff"].history=[];    
    // original code.....
    digitalWrite(B9,1); // enable on Pico Shim V2

However I've just pushed the new version of the Web IDE (0.65.2) with the send module as function enhancement, so you could give that a try too.