PyQt6 - Problem with --disable-web-security

Angelo54

Hi, the flag "--disable-web-security" doesn't seem to work, for PyQt6, inside the QApplication() arguments. I wrote the following code:

sys.argv.append("--disable-web-security")
app = QApplication(sys.argv)

The same code works on PyQt5. Can you help me please?
Thank you.

StarterKit

@Angelo54, implementation of flags and features may differ a lot between releases.
Could you please explain what you want to achieve with help of this option? i.e. why do you need it?

JKSH

Hi, and welcome!

@Angelo54 said in PyQt6 - Problem with --disable-web-security:

the flag "--disable-web-security" doesn't seem to work, for PyQt6

That flag works for very old versions of Chromium (which is the core of Qt WebEngine). Newer versions of Chromium don't accept it by itself anymore: https://stackoverflow.com/a/55442160/1144539

Angelo54

@JKSH @StarterKit

Thank you.
Using the flag "--disable-web-security" on PyQt5, I can access to the HTML inside the "iframe" elements, using javascript code like this:

var iframe = document.querySelector("#iframe-id");
var doc = iframe.contentWindow.document;

I can't access to the iframe content without that flag.
Do you have any suggestions to achieve the same goal?

JKSH

@Angelo54 said in PyQt6 - Problem with --disable-web-security:

I can access to the HTML inside the "iframe" elements, using javascript code like this:
var iframe = document.querySelector("#iframe-id");
var doc = iframe.contentWindow.document;

Sounds like your iframe comes from a different origin compared to your "main" page?

I don't think that's allowed anymore in modern browsers, because it is a security flaw . See https://stackoverflow.com/questions/25098021/securityerror-blocked-a-frame-with-origin-from-accessing-a-cross-origin-frame