No more multi_access() - New Secured Tokens and Sync events

[hassandraga]

Because I noticed some weird things... I recently was working locally during nights and weekends in a "heavy" core changes (39f9ab0, 53724d4, e462d7b).

Old issues:

• A simple URL copy/paste can make you close the main window
• An easily modified version of webui.js embedded in a local test.htm can make you control the values of the main window
• Calling a back-end function multiple times quickly can send the same first response to all other requests
• Enabling multi_access() it just allows showing the UI in the other windows. That's it. But ALL event's response goes to the first window only... that's because WebUI is window-based and NOT client-based design... otherwise, we will be forced to add client_id to all functions

So, after spending days fixing all those issues, WebUI now is better than before, stable and secure, and no more weird things.
However, I plan to add TLS and multi-arguments and do a final test to release v2.4.0.

[hassandraga]

About TLS implementation let's continue here.

[fibodevy]

Since there is now option to start the web server without opening a browser, multi_access is not needed.

[hassandraga]

That's true, but I should point out that only one page/tab can access the server using the URL. The other tabs will get blocked, and even a modified webui.js will get blocked too by tokens.