On my local machine i have been using --disable-web-security --user-data-dir to disable the web security. After upgrading to Chrome Version 66 i have started getting Blocke
Simply add
--disable-site-isolation-trials
This works in Chrome 68.
This has apparently been fixed in Chrome 67. You can find the bug I reported and a workaround here. The command-line workaround requires you to start Chrome with the following argument:
--disable-features=CrossSiteDocumentBlockingIfIsolating,CrossSiteDocumentBlockingAlways
Found a workaround mentioned in https://www.chromium.org/Home/chromium-security/site-isolation
C:\Program Files (x86)\Google\Chrome\Application>chrome.exe --disable-web-securi
ty --user-data-dir --disable-features=CrossSiteDocumentBlockingIfIsolating