michael@0: /**
michael@0:  * Any copyright is dedicated to the Public Domain.
michael@0:  * http://creativecommons.org/publicdomain/zero/1.0/
michael@0:  */
michael@0: var seenScopeError;
michael@0: onerror = function(message, filename, lineno) {
michael@0:   if (!seenScopeError) {
michael@0:     seenScopeError = true;
michael@0:     postMessage({
michael@0:       type: "scope",
michael@0:       data: { message: message, filename: filename, lineno: lineno }
michael@0:     });
michael@0:     return true;
michael@0:   }
michael@0: };
michael@0: 
michael@0: onmessage = function(event) {
michael@0:   var workerId = parseInt(event.data);
michael@0: 
michael@0:   if (workerId > 1) {
michael@0:     var worker = new Worker("errorPropagation_worker.js");
michael@0: 
michael@0:     worker.onmessage = function(event) {
michael@0:       postMessage(event.data);
michael@0:     };
michael@0: 
michael@0:     var seenWorkerError;
michael@0:     worker.onerror = function(event) {
michael@0:       if (!seenWorkerError) {
michael@0:         seenWorkerError = true;
michael@0:         postMessage({
michael@0:           type: "worker",
michael@0:           data: {
michael@0:             message: event.message,
michael@0:             filename: event.filename,
michael@0:             lineno: event.lineno
michael@0:           }
michael@0:         });
michael@0:         event.preventDefault();
michael@0:       }
michael@0:     };
michael@0: 
michael@0:     worker.postMessage(workerId - 1);
michael@0:     return;
michael@0:   }
michael@0: 
michael@0:   var interval = setInterval(function() {
michael@0:     throw new Error("expectedError");
michael@0:   }, 100);
michael@0: };