How to disable web security policy? I tried many ways but failed. I use qt5.9.2

kingstying

This post is deleted!

kingstying

I run QWebEngineView browser on my arm board. The browser page can not display normally. I think it is "Same Origin Policy" stop the browser loading some files. I have tried three ways, but it seems to useless.
First way,
webView->page()->settings()->setAttribute(QWebEngineSettings::LocalContentCanAccessRemoteUrls, true);
webView->page()->settings()->setAttribute(QWebEngineSettings::LocalContentCanAccessFileUrls, true);

Second way,
Pass argument "--disable-web-security" or "--disable-web-security --user-data-dir='mydir' " to QApplication object.
Third way,
Pass argument "--allow-file-access-from-files" to QApplication object, useless. But i tried command "chrome.exe --allow-file-access-from-files" on Windows, it success.

Anyone can give me some suggestions?

ambershark

Removed duplicate https://forum.qt.io/topic/88930/qwebengine-browser-can-not-disable-web-security.

Please don't post the same question multiple times. I am erasing the other one.

kingstying

@ambershark Could you tell me how to solve this problem?

ambershark

@kingstying Sorry I haven't used QWebEngine components enough to offer much advice there. And in the little I have used them I've never had to mix remote/local files that require security overrides.

Hopefully someone else who has done it can chime in here.

kingstying

This post is deleted!

DeeeZ

I'm using the flag "--disable-web-security" with QWebEngineView with success on Qt 5.9.X and Qt 5.10

I don't use "--allow-file-access-from-files" flag since I don't need to access local files ...

kingstying

@DeeeZ Thanks you very much. Could you please tell me how do you pass the "--disable-web-security" argument to QWebEngineView? Do you pass it to QApplication object?

DeeeZ

Like this:
QStringList argumentsAdded;
...
argumentsAdded.append("--disable-web-security");
...
int i = 0;
int new_argc = argc + argumentsAdded.size();
char** new_argv = (char **) malloc((new_argc + 1) * sizeof (char *));

// Store previous arguments
for(i = 0; i < argc; i++)
{
    size_t length = strlen(argv[i])+1;
    new_argv[i] = (char *) malloc(length);
    memcpy(new_argv[i], argv[i], length);
}

// Store new arguments
i=0;
foreach(QString s, argumentsAdded)
{
    new_argv[argc + i]  = new char[s.toLocal8Bit().size()+1];
    strcpy( new_argv[argc + i], s.toLocal8Bit().constData());
    i++;
}
// Finish array with NULL value
new_argv[new_argc] = NULL;

// Create a single application to avoid to have several instance
QtSingleApplication singleApp(new_argc, new_argv);