panic: Failed to get browsing context info from constellation.: Disconnected at components/script/script_thread.rs:2917 #36747
Description
It seems there are several similar reports, but not sure whether they are duplicates.
Minimal testcase:
<!DOCTYPE html>
<style>
#form { border-image-source: url(database64,R0lGODlhEAAQAMQAAORHHOVSKudfOulrSOp3WOyDZu6QdvCchPGolfO0o/XBs/fNwfjZ0frl3/zy7////wAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACH5BAkAABAALAAAAAAQABAAAAVVICSOZGlCQAosJ6mu7fiyZeKqNKToQGDsM8hBADgUXoGAiqhSvp5QAnQKGIgUhwFUYLCVDFCrKUE1lBavAViFIDlTImbKC5Gm2hB0SlBCBMQiB0UjIQA7); border-style: solid; }
</style>
<script>
window.addEventListener("load", _ => {
form.submit();
window.frames.stop();
iframe.src = "data:text/html,";
});
</script>
<form id="form">
<iframe id="iframe"></iframe>
System: Linux
Version: Servo 0.0.1-107fd2546
Failed to get browsing context info from constellation.: Disconnected (thread Script(70,3), at components/script/script_thread.rs:2917)
0: servoshell::backtrace::print
1: servoshell::panic_hook::panic_hook
2: std::panicking::rust_panic_with_hook
3: std::panicking::begin_panic_handler::{{closure}}
4: std::sys::backtrace::__rust_end_short_backtrace
5: rust_begin_unwind
6: core::panicking::panic_fmt
7: core::result::unwrap_failed
8: script::script_thread::ScriptThread::remote_window_proxy
9: script::script_thread::ScriptThread::local_window_proxy
10: script::script_thread::ScriptThread::load
11: <script::dom::servoparser::ParserContext as net_traits::FetchResponseListener>::process_response
12: script::script_thread::ScriptThread::handle_msg_from_script
13: script::script_thread::ScriptThread::handle_msgs::{{closure}}
14: script::script_thread::ScriptThread::handle_msgs
15: std::sys::backtrace::__rust_begin_short_backtrace
16: core::ops::function::FnOnce::call_once{{vtable.shim}}
17: std::sys::pal::unix::thread::Thread::new::thread_start
18: start_thread
at ./nptl/pthread_create.c:447:8
19: clone3
at ./misc/../sysdeps/unix/sysv/linux/x86_64/clone3.S:78:0