[FIX] core: ability to run tours in Chrome 111

Chrome 111 enabled checking of websocket origin: if the WS connection
sends an Origin head which is not whitelisted with the new
`--remote-allow-origins` switch it is rejected.

Turns out websocket-client (amongst others) *does* send an `Origin`,
which trips the check, and means tours immediately break when trying
to run them as Odoo's test harness is unable to connect to (and
control) the devtools.

Suppress sending `Origin` to fix the issue.

To make the watch mode work, set `--remote-allow-origins`: since we
specifically only bind the devtools to the loopback
address (127.0.0.1) whatever issues this plugs are unlikely to affect
us. We might eventually want to change the behaviour of the watch
feature for UX reasons and remove this in the future though, either by
working through the non-ws remote inspection (`chrome://inspect`) or
by having the `watch` mode run in a normal browser directly instead of
having a browser connect to a headless browser.

Chrome 111 changeset: https://chromiumdash.appspot.com/commit/0154caeefc74530d5cb57ce71608beb1b77bca39

Chrome tracker issue: https://crbug.com/1422444

closes odoo/odoo#115067

X-original-commit: 47a02b3924c3e4d1690e336fdd764383393ee378
Signed-off-by: Xavier Morel (xmo) <xmo@odoo.com>

odoo/tests/common.py

@@ -975,6 +975,7 @@ class ChromeBrowser:
             '--remote-debugging-port': str(self.remote_debugging_port),
             '--no-sandbox': '',
             '--disable-gpu': '',
+            '--remote-allow-origins': '*',
             # '--enable-precise-memory-info': '', # uncomment to debug memory leaks in qunit suite
             # '--js-flags': '--expose-gc', # uncomment to debug memory leaks in qunit suite
         }
@@ -1063,7 +1064,7 @@ class ChromeBrowser:
         raise unittest.SkipTest("Error during Chrome headless connection")
 
     def _open_websocket(self):
-        self.ws = websocket.create_connection(self.ws_url, enable_multithread=True)
+        self.ws = websocket.create_connection(self.ws_url, enable_multithread=True, suppress_origin=True)
         if self.ws.getstatus() != 101:
             raise unittest.SkipTest("Cannot connect to chrome dev tools")
         self.ws.settimeout(0.01)