chrome.downloads.erase不起作用从内容脚本启动时 [英] chrome.downloads.erase not working When initiated from content script

问题描述

我正在尝试创建一个Chrome扩展程序，以便在进入某个网站时使用。我正在删除下载历史记录。

  chrome.downloads.erase（{}，
 function（item） 
 {
 console.log（Erased item）; 
 console.log（item）; 
}）; 
  

问题在于，当我在输入邮件后从联系人脚本发送邮件时，它不起作用我想要的url。

我在内容脚本中使用send Message

  chrome.runtime.sendMessage 
  

并在后台页面接收消息

  chrome.runtime.onMessage.addListener 
  

 已擦除项目
 Array 
这是我得到的输出，虽然下载记录中有一些文件： [0] 
  

如果我从后台页面控制台运行erase（） p>

它似乎是因为没有用户交互而发生的。
如果我把一个清除按钮，并点击它删除确实有效
但是，如果我使用超时它不
任何想法，为什么发生？

我已经看到它与setTimeout
有关系，这可以在后台页面中使用：

  setTimeout（function（）{
 console.log（'erasing downloads'）; 
 chrome.downloads.erase（{}）; 
} 
，0）; 
  

但这并不是：

<$ p $ （）{
console.log（'erasing downloads'）;
chrome.downloads.erase（{}）;
}
，1000）;

解决方案

我想我终于找到了问题的原因。
下载之后，我用taskkill / f关闭了Chrome，如下所示：

taskKill / imchrome.exe/ f

重新打开Chrome之后，我在下载页面中找到了这一行：

thefilenamedownloaded.exe浏览器在下载完成前崩溃。

如果我使用taskKill / imchrome.exe（不带/ f），则问题不会发生。
这个错误实际上可能比这更复杂，因为当我进行用户交互时它也起作用。但现在它解决了我的问题。希望这可以帮助其他人

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);

解决方案

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

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