On 7/9/26 10:57, Mikolaj Kucharski wrote:
> On Thu, Jul 09, 2026 at 11:46:26AM +0200, Kirill A. Korinsky wrote:
>> Ha!
>>
>> I had opened it in incognito mode, clicked accept all cookies and...
>> chromium crashed.
> 
> Thank for additional info. When I wrote I made it work, I clicked on
> allow only essential cookies or similar button. I did not accepted all.
> 

An AI found the crash is related to a web serial.

I have no idea why it randomly fails on my side.
But yes, after trying a few times, I also get the crash.

Crash:
rm -rf /tmp/chrome-vinted-serial && \
/usr/local/bin/chrome \
    --user-data-dir=/tmp/chrome-vinted-serial \
    --no-first-run \
    https://www.vinted.com/

No crash:
rm -rf /tmp/chrome-vinted-noserial && \
/usr/local/bin/chrome \
    --user-data-dir=/tmp/chrome-vinted-noserial \
    --no-first-run \
    --disable-blink-features=Serial \
    --disable-features=WebSerialAPI \
    https://www.vinted.com/

From my first test, --disable-blink-features=Serial is enough.

Please test those flags and confirm it fixes your issue.

I also get this crash while looking for WASM stuff online.
https://patrickelectric.work/mavlink2rest-wasm/

This one crashes all the time as it explicitly tests the serial.

rm -rf /tmp/chrome-serial && \
/usr/local/bin/chrome \
    --user-data-dir=/tmp/chrome-serial \
    --no-first-run \
    https://patrickelectric.work/mavlink2rest-wasm/

Also, I do not understand why, but --js-flags=--jitless prevents the crash.
I guess this is specific to this test.

The below diff isn't enough, but it show where to look.
Next we have to handle the failure and return / close properly.
Otherwise tests fail on a timeout, which sounds not correct.

Except if someone wants to implement serial ...

-- 
Fabien Romano

QOL. Do not crash, fail silently.
XXX notyet

Index: services/device/device_service.cc
--- services/device/device_service.cc.orig
+++ services/device/device_service.cc
@@ -310,7 +310,8 @@ void DeviceService::BindSerialPortManager(
   serial_port_manager_.AsyncCall(&SerialPortManagerImpl::Bind, FROM_HERE)
       .WithArgs(std::move(receiver));
 #else   // defined(IS_SERIAL_ENABLED_PLATFORM)
-  NOTREACHED() << "Serial devices not supported on this platform.";
+  // Serial is unsupported on this platform. Let the receiver close so the
+  // renderer observes a disconnect and requestPort() fails gracefully.
 #endif  // defined(IS_SERIAL_ENABLED_PLATFORM)
 }