white-space: nowrap; and flexbox did not work in chrome

Other variant for text-overflow: ellipsis when content width must be dynamic

html, body{
  width: 100%;
  padding: 0;
  margin: 0;
  }
  
body{
  padding-top: 10px
  }
  

.container{
  display: flex;
  justify-content: space-between;
  align-items: stretch;
  box-sizing: boder-box;
  width: 100%;
  padding-bottom: 10px;
  margin-bottom: 10px;
  border-bottom: 1px solid #ddd
  }
  
.title{
  display: flex;
  flex: 0 0 auto;
  justify-content: center;
  align-items: center;
  padding: 10px;
  background-color: #ddd
  }
  
.content{
  display: flex;
  flex-grow: 1;
  align-items: center;
  padding: 0 10px;
  overflow: hidden
  }
  
.wrapper{
  width: 100%;
  overflow: hidden;
  text-overflow: ellipsis
  }

.area{
  display: flex;
  flex: 0 0 auto;
  flex-grow: 0;
  padding: 0 10px;
  align-items: center;
  background-color: #ddd
  }
<div class="container">
  <div class="title">
      Title
  </div> 
  <div class="content">
    <div class="wrapper">
      Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
    </div>
  </div>
  <div class="area">
    Options
  </div>
</div>

<div class="container">
  <div class="title">
      Title
  </div> 
  <div class="content">
    <div class="wrapper"> Lorem_Ipsum_isssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss
    </div>
  </div>
  <div class="area">
    Options
  </div>
</div>

<div class="container">
  <div class="title">
      Title 1 | Title 2
  </div> 
  <div class="content">
    <div class="wrapper">
      Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
    </div>
  </div>
  <div class="area">
    Options 1 | Options 2
  </div>
</div>

<div class="container">
  <div class="title">
      Title 1 | Title 2
  </div> 
  <div class="content">
    <div class="wrapper"> Lorem_Ipsum_isssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss
    </div>
  </div>
  <div class="area">
    Options 1 | Options 2
  </div>
</div>

Example: https://codepen.io/Norfild/pen/KozJzg


Reference - https://drafts.csswg.org/css-flexbox-1/#min-size-auto

The initial setting on flex items is min-width: auto. So, in order for each item to stay within the container, we need to give min-width: 0.

Add min-width: 0;. This is the easy workaround in your case.

that is

name {
  display: flex;
  min-width: 0;
}

Snippet

.container {
  width: 800px;
  height: 80px;
  display: flex;
  border: solid 1px black;
  margin: 10px;
}
.name {
  display: flex;
  min-width: 0;
}
.firstname {
  width: 100px;
  background-color: grey;
}
.lastname {
  flex-grow: 1;
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
  display: flex;
}
.side {
  flex-grow: 0;
}
.side, .firstname, .lastname {
  align-self: center;
  padding: 0 20px;
}
<h1>problem</h1>
<div class="container">
  <div class="name">
    <div class="firstname">
      test
    </div>
    <div class="lastname">
      as kjldashdk ja asdjhk ashdjk ashdjk asdjasdkajsdh akjsd asd asd asd asd asd asd as das da asdas dasd asda sdasd as dasd asd asd as dasd a
    </div>
  </div>  
  <div class="side">
    options
  </div>
</div>

<h1>expected result</h1>

<div class="container">
  <div class="name">
    <div class="firstname">
      test
    </div>
    <div class="lastname">
      as kjldashdk ja asdjhk ashdjk ashdjk asdjasdkajsdh akjsd asd asd asd asd sa dad...
    </div>
  </div>  
  <div class="side">
    options
  </div>
</div>