Chrome extension background page restriction after event or setTimeout [duplicate] - google-chrome

Question

I am trying to create a Chrome extension that when entering a certain site. I am deleting the download history. I am using this from the background page:
chrome.downloads.erase({},
function(item)
{
console.log("Erased item");
console.log(item);
});
The problem is that it is not working when I am sending a message from the contact script after entering the url I wanted.
I use send Message in the content script
chrome.runtime.sendMessage
and receive the message in the background page
chrome.runtime.onMessage.addListener
This is the output I get although there are some files in the download history:
Erased item
Array[0]
If I run the erase() from within the background page console it works fine
it seems that it happens because there is no user interaction.
If I put a clear button and click on it the deletion does works
But if I use timeout it does not
Any Idea why it happens?
I have seen that it has something to do with the setTimeout
This works in the background page:
setTimeout(function(){
console.log('erasing downloads');
chrome.downloads.erase({});
}
, 0);
But this does not:
setTimeout(function(){
console.log('erasing downloads');
chrome.downloads.erase({});
}
, 1000);

Answer 1

I think I had finally found the reason for the problem.
After downloading I have closed Chrome with taskkill /f, like this:
taskKill /im "chrome.exe" /f
After reopening Chrome I got in this line in the download page:
thefilenamedownloaded.exe The browser crashed before the download completed.
If I used taskKill /im "chrome.exe" (without /f) than the problem did not happen.
The bug may be actually more complicated than this because that when I had user interaction its also worked. But for now it solved my problem. Hopes this help anyone else