javascript 打印被 chrome 阻止
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Javascript print blocked by chrome
提问by Oppdal
I'm trying to run a javascript window.print()from chrome. It prints the first time but then subsequent calls (within a minute of the first call) fail. The chrome log states "Ignoring too frequent calls to print()."
我正在尝试window.print()从 chrome运行 javascript 。它第一次打印，但随后的调用（在第一次调用的一分钟内）失败。chrome 日志指出“忽略对 print() 的过于频繁的调用”。
window.print();
setInterval(function() {
window.print();
}, 5000);
Can't find a way around this issue. Any ideas?
找不到解决此问题的方法。有任何想法吗？
Thanks in advance
提前致谢
采纳答案by code_burgar
It appears to be a design decision rather than a bug. Getting around it will probably be pretty hard.
这似乎是一个设计决定而不是一个错误。绕过它可能会非常困难。
回答by Riley Lark
Sounds like a deliberate choice on Chrome's part that you probably won't be able to get around. As an alternative, you could prepare all of your jobs at once and separate them with a page break:
听起来像是 Chrome 的一个深思熟虑的选择，你可能无法绕过。作为替代方案，您可以一次准备所有作业并用分页符将它们分开：
<div style="page-break-after:always"></div>
<div style="page-break-after:always"></div>
回答by bvaughn
I have found the following to be a work-around to enable JavaScript printing from Chrome:
我发现以下是从 Chrome 启用 JavaScript 打印的解决方法：
<a href="#" onclick="window.print(); return false;">Click me to Print</a>
It seems that adding the "return false" bit to the onclick handler makes Chrome happy.
似乎将“返回假”位添加到 onclick 处理程序让 Chrome 高兴。
I think that without it, Chrome attempts to follow the link somewhere / reload the page. This results in a print dialog showing nothing to print.
我认为如果没有它，Chrome 会尝试在某处点击链接/重新加载页面。这会导致打印对话框显示无打印内容。
回答by corbacho
Good! Bug fixed. The bug was fixed as part of v.23 if I'm not wrong.
好的！错误已修复。如果我没记错的话，这个错误作为 v.23 的一部分被修复了。
So if the release cycle is every 6 weeks and Chrome 22 was released 25th of Sep, then by 6th of November(aprox.) the fix will be in the Chrome Stable version
因此，如果发布周期是每 6 周一次，并且 Chrome 22 是在 9 月 25 日发布的，那么到 11 月 6 日（大约），修复将在 Chrome 稳定版中
回答by John McLear
In chrome you have to fire the window.location.reload event to fire a print event.. ref from Chrome: window.print() print dialogue opens only after page reload (javascript)
在 chrome 中，您必须触发 window.location.reload 事件以触发打印事件.. 来自Chrome 的ref ：window.print() 打印对话框仅在页面重新加载后打开 (javascript)
This works for me..
这对我有用..
window.print();
if(navigator.userAgent.toLowerCase().indexOf('chrome') > -1){
window.location.reload();
}
