Safari嵌套的flex问题

Question

具有同级为[[flex-grow：1和overflow-y：auto的嵌套嵌套框）无法在Safari [My build 13.1（14609.1.20.111.8）]中正常运行。这在Chrome浏览器中再次有效。附上两个项目的屏幕快照以及最小的可复制代码块。

如果我们给第二个孩子的flex-basis：[n] px一个固定的大小。但是我们不能总是期望如此，因为第二项中的内容是动态的。在下面的代码块中，该代码块用于显示最小的可复制用例。

.parent {
  flex-direction: column;
  display: flex;
  background-color: #CCC;
  padding: 8px;
  height: 150px;
  font-size: 16px;
}

.fixedChild {
  display: flex;
  padding: 10px;
  justify-content: space-between;
  flex-basis: auto;
}

.growingChild {
  overflow-y: auto;
  flex-grow: 1;
}

/*! CSS Used from: Embedded */
.fancyButton {
  background-color: transparent;
  border: 1px solid transparent;
  border-color: #0076D1;
  border-radius: 15px;
  color: #0076D1;
  height: 50px;
  justify-content: center;
  outline: none;
  padding: 0 8px;
}

<div class="parent">
  <div class="growingChild">
    Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur, from a Lorem Ipsum passage, and going through the cites of the word in classical literature, discovered the undoubtable source. Lorem Ipsum comes from sections 1.10.32 and 1.10.33 of "de Finibus Bonorum et Malorum" (The Extremes of Good and Evil) by Cicero, written in 45 BC. This book is a treatise on the theory of ethics, very popular during the Renaissance. The first line of Lorem Ipsum, "Lorem ipsum dolor sit amet..", comes from a line in section 1.10.32.

    The standard chunk of Lorem Ipsum used since the 1500s is reproduced below for those interested. Sections 1.10.32 and 1.10.33 from "de Finibus Bonorum et Malorum" by Cicero are also reproduced in their exact original form, accompanied by English versions from the 1914 translation by H. Rackham.
    Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur, from a Lorem Ipsum passage, and going through the cites of the word in classical literature, discovered the undoubtable source. Lorem Ipsum comes from sections 1.10.32 and 1.10.33 of "de Finibus Bonorum et Malorum" (The Extremes of Good and Evil) by Cicero, written in 45 BC. This book is a treatise on the theory of ethics, very popular during the Renaissance. The first line of Lorem Ipsum, "Lorem ipsum dolor sit amet..", comes from a line in section 1.10.32.

    The standard chunk of Lorem Ipsum used since the 1500s is reproduced below for those interested. Sections 1.10.32 and 1.10.33 from "de Finibus Bonorum et Malorum" by Cicero are also reproduced in their exact original form, accompanied by English versions from the 1914 translation by H. Rackham.
    
  </div>
  <div class="fixedChild">
    <button class="fancyButton" type="button">button 1</button>
    <button class="fancyButton" type="button">button 1</button>
    <button class="fancyButton" type="button">button 1</button>
  </div>
</div>

Answer 1

这不会解决潜在的不一致，而是将最后一个子项（flex项目）设置为：

flex-shrink: 0;

似乎使Safari和Chrome的行为相同，其中flex容器说明按钮的高度以及不断增加的flex项同级。不确定谁是对是错，但我觉得可能是Safari🤔？