Bug 1611081 Comment 21 Edit History

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Original comment by
on 
To add to Honza's, i narrowed it down to 
https://searchfox.org/mozilla-central/rev/a3266997560904b484fd89d6a6bcdeace4a13652/devtools/server/actors/network-monitor/network-observer.js#933 so far

I've been getting this exception thrown, when pause on exception is turned on
```
Exception { 
name: "NS_ERROR_FAILURE", 
message: "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsITraceableChannel.setNewListener]", 
result: 2147500037, 
filename: "resource://devtools/server/actors/network-monitor/network-observer.js", 
lineNumber: 933, 
columnNumber: 0, 
data: null, 
stack: "
	_setupResponseListener@resource://devtools/server/actors/network-monitor/network-observer.js:933:38\n
	_createNetworkEvent@resource://devtools/server/actors/network-monitor/network-observer.js:767:12\n
	_onRequestHeader@resource://devtools/server/actors/network-monitor/network-observer.js:793:10\n
	NetworkObserver.prototype.observeActivity<@resource://devtools/server/actors/network-monitor/network-observer.js:580:12\n
	exports.makeInfallible/<@resource://devtools/shared/ThreadSafeDevToolsUtils.js:111:22\n", 
location: XPCWrappedNative_NoHelper }
```
Revision 1 by
on 
To add to Honza's, i narrowed it down so far to 
https://searchfox.org/mozilla-central/rev/a3266997560904b484fd89d6a6bcdeace4a13652/devtools/server/actors/network-monitor/network-observer.js#933

I've been getting this exception thrown, when pause on exception is turned on
```
Exception { 
name: "NS_ERROR_FAILURE", 
message: "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsITraceableChannel.setNewListener]", 
result: 2147500037, 
filename: "resource://devtools/server/actors/network-monitor/network-observer.js", 
lineNumber: 933, 
columnNumber: 0, 
data: null, 
stack: "
	_setupResponseListener@resource://devtools/server/actors/network-monitor/network-observer.js:933:38\n
	_createNetworkEvent@resource://devtools/server/actors/network-monitor/network-observer.js:767:12\n
	_onRequestHeader@resource://devtools/server/actors/network-monitor/network-observer.js:793:10\n
	NetworkObserver.prototype.observeActivity<@resource://devtools/server/actors/network-monitor/network-observer.js:580:12\n
	exports.makeInfallible/<@resource://devtools/shared/ThreadSafeDevToolsUtils.js:111:22\n", 
location: XPCWrappedNative_NoHelper }
```

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