关于 WKWebView 加载本地文件时 localStorage 数据丢失的情况

Question

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在 iOS 平台使用 WKWebView 通过file://协议加载本地 HTML 文件时，存储在localStorage中的数据会在 App 后台切换、进程重启后偶尔丢失；但相同代码在安卓 / 鸿蒙平台无此问题。

现在的文档仅明确了「默认数据存储（defaultDataStore）可将网站数据持久化到磁盘，非持久化存储（nonPersistent）仅存内存」的基础规则；未提及「file://协议内容即使使用默认持久化存储，也会被归为临时内存存储」这一关键场景限制；仅在WKURLSchemeHandler关联说明中隐含「自定义 URL 协议可处理 WebKit 原生不支持的 URL 方案」，但未直接关联file://的存储问题。我找不到如何处理这个问题的官方文档，仅仅有其他的博客说需要增加http/https加载就没有这个问题。

请提供给我官方文档或者官方回复关于出现这种file:/加载html出现问题的处理办法

Answered by DTS Engineer in 869332022

I am tracking some other issues related to localStorage. Please consider filing a bug report.

Our engineering teams need to investigate this issue, as resolution may involve changes to Apple's software. Please file a bug report, include a small Xcode project and some directions that can be used to reproduce the problem, and post the Feedback number here once you do. If you post the Feedback number here I'll check the status next time I do a sweep of forums posts where I've suggested bug reports.

Bug Reporting: How and Why? has tips on creating your bug report.

Boost

Answer 1

Qiker OP

1d

https://github.com/apache/cordova-ios/issues/1564

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Answer 2

DTS Engineer OP

Apple

1d

Recommended

I am tracking some other issues related to localStorage. Please consider filing a bug report.

Our engineering teams need to investigate this issue, as resolution may involve changes to Apple's software. Please file a bug report, include a small Xcode project and some directions that can be used to reproduce the problem, and post the Feedback number here once you do. If you post the Feedback number here I'll check the status next time I do a sweep of forums posts where I've suggested bug reports.

Bug Reporting: How and Why? has tips on creating your bug report.

0