angular / angular/components

bug(mat-form-field): when using appearance="outline", input fields increases in height.

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area: material/form-field P2
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描述

### Is this a regression?

- [X] Yes, this behavior used to work in the previous version

### The previous version in which this bug was not present was

_No response_

### Description

When using mat-form-field with appearance="outline", text input field increases in height after entering a text
Reproduces on mobile devices with iOS 17+

### Reproduction

Steps to reproduce:

1. Open Safari 17 on a mobile device (it is the default browser for iOS 17)
2. Open Angular Material Page at https://material.angular.io/components/form-field/overview
3. Find Outline form field
4. Enter any text. Probably need to clear the field and enter the text again.

### Expected Behavior

The height of the field should be the same as the field without text
![image](https://github.com/angular/components/assets/10838804/e30f248c-4e49-4853-a190-87aada38a1b7)

### Actual Behavior

The field height is different compared to the field without text
![image](https://github.com/angular/components/assets/10838804/40351a90-d07f-4a99-b6a2-a09026faacc6)

### Environment

- Angular: 15-17
- CDK/Material: 15-17
- Browser(s): mobile Safari 17
- Operating System iOS 17.1.2

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调研方向

首先,在 mobile Safari 17 中从 Angular Material form-field overview page 复现该问题,使用 outline form field,并比较输入文本前后的高度。当 outlined input 在 iOS 17+ 上无论是否有文本都保持相同高度,且该回归由适当的项目测试覆盖时,即表示完成。

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评估

技术栈
angular, typescript
领域
frontend
Issue 类型
缺陷
难度
3/5
预计耗时
1-2 天
活跃度
停滞
描述清晰度
基本清楚
新手友好度
45/100

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