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**I'm submitting a bug report**
* **Library Version:**
master
* **Browser:**
all
**Current behavior:**
As can be seen here:
https://github.com/aurelia/templating/blob/master/src/child-o…
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我这边是fork的qiankun自己在团队内增加特性功能，最近参考(缝)了wujie的一些方案后，也遇到了poper fixed定位偏移问题
解决思路如下，对body的append进行劫持，判断className是否有el-popper，有的话用MutationObserver监听style属性，有变化就把fixed改成abs，再处理好隐藏和删除逻辑，目前运行没有什么问题。
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I need to detect video events (`play`, `pause`, `ended`, ...) in my application. As far as I can see from the documentation those events are not forwarded by the api.
Right now I use the following…
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When accessing the app from Safari via windows, mac, or ios, the resulting error is: Can’t find variable: MutationObserver in Safari Browser compatibility.
I've included a screenshot from your demo.x…
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if (typeof MutationObserver === 'function' ) {
var observer = new MutationObserver(function (mutations) {
// delay recalculation, prevent recalculation before anima…
viros updated
8 years ago
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ref
- [MutationObserver](https://developer.mozilla.org/zh-CN/docs/Web/API/MutationObserver)
- [IntersectionObserver](https://developer.mozilla.org/zh-CN/docs/Web/API/IntersectionObserver) #50
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For a while I've been getting this warning for a while, I don't know if it's caused by DAL or JAL.
It's caused apparently when 'DOMNodeInserted' is used.
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**I'm submitting a ...** (check one with "x")
```
[x] bug report => Search github for a similar issue or PR before submitting
[ ] feature request => Please check if request is not on the roadmap a…
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Vue 2.6.8 中会先后尝试使用：`Promise`、`MutationObserver`、`setImmediate`，最后都不支持才会使用 `setTimeout`，是不是考虑更新一下文档并标注下版本。
下面这是 Vue 2.6.8 中的源码
```JavaScript
if (typeof Promise !== 'undefined' && isNative(Promise)…
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> [Deprecation] Listener added for a 'DOMNodeInserted' mutation event. This event type is deprecated, and will be removed from this browser very soon. Usage of this event listener will cause performan…