Bugzilla

So these are the minimal required flags (while network flags are only for Grizzly to work):

```
user_pref("browser.search.region", 'US');
user_pref("network.proxy.autoconfig_url", "data:text/plain,function FindProxyForURL(url, host) { if (host == 'localhost' || host == '127.0.0.1') { return 'DIRECT'; } else { return 'PROXY 127.0.0.1:6'; } }");
user_pref("network.proxy.share_proxy_settings", true);
user_pref("network.proxy.type", 2);
user_pref("print.always_print_silent", true);
user_pref("print.print_to_file", true);
user_pref("print.print_to_filename", '/dev/null');
```

I'm not sure why `browser.search.region` matters but it anyway is required, and that implies the full browser chrome is needed for this to be reproduced. But the crashtest system does not show the browser chrome. 🤷‍♀️

Chrome-less printing is probably not expected, so maybe it should use normal mochitest.

So these are the minimal required flags (while network flags are only for Grizzly to work):

```
user_pref("browser.search.region", 'US');
user_pref("network.proxy.autoconfig_url", "data:text/plain,function FindProxyForURL(url, host) { if (host == 'localhost' || host == '127.0.0.1') { return 'DIRECT'; } else { return 'PROXY 127.0.0.1:6'; } }");
user_pref("network.proxy.share_proxy_settings", true);
user_pref("network.proxy.type", 2);
user_pref("print.always_print_silent", true);
user_pref("print.print_to_file", true);
user_pref("print.print_to_filename", '/dev/null');
```

I'm not sure why `browser.search.region` matters but it anyway is required, and that implies the full browser chrome is needed for this to be reproduced. But the crashtest system does not show the browser chrome. 🤷‍♀️

Chrome-less printing is probably not expected, so maybe it should use normal mochitest. (Not sure WPT can be used, there is no existing non-manual WPT test with `window.print()` call.)

So these are the minimal required flags (while network flags are only for Grizzly to work):

```
user_pref("browser.search.region", 'US');
user_pref("network.proxy.autoconfig_url", "data:text/plain,function FindProxyForURL(url, host) { if (host == 'localhost' || host == '127.0.0.1') { return 'DIRECT'; } else { return 'PROXY 127.0.0.1:6'; } }");
user_pref("network.proxy.share_proxy_settings", true);
user_pref("network.proxy.type", 2);
user_pref("print.always_print_silent", true);
user_pref("print.print_to_file", true);
user_pref("print.print_to_filename", '/dev/null');
```

I'm not sure why `browser.search.region` matters but it anyway is required, and that implies the full browser chrome is needed for this to be reproduced. But the crashtest system does not show the browser chrome. 🤷‍♀️

Chrome-less printing is probably not expected, so maybe it should use normal mochitest. (Not sure WPT can be used, there is no existing non-manual WPT test with `window.print()` call.)

I will investigate more next week

So these are the minimal required flags (while network flags are only for Grizzly to work):

```
user_pref("browser.search.region", 'US');
user_pref("network.proxy.autoconfig_url", "data:text/plain,function FindProxyForURL(url, host) { if (host == 'localhost' || host == '127.0.0.1') { return 'DIRECT'; } else { return 'PROXY 127.0.0.1:6'; } }");
user_pref("network.proxy.share_proxy_settings", true);
user_pref("network.proxy.type", 2);
user_pref("print.always_print_silent", true);
user_pref("print.print_to_file", true);
user_pref("print.print_to_filename", '/dev/null');
```

I'm not sure why `browser.search.region` matters but it anyway is required, and that implies the full browser chrome is needed for this to be reproduced. But the crashtest system does not show the browser chrome. 🤷‍♀️

Chrome-less printing is probably not expected, so maybe it should use normal mochitest. (Not sure WPT can be used, there is no existing non-manual WPT test with `window.print()` call.)

I will investigate more next week.