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[Edge] indexedDB storage limit

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Hi,

I am currently working on cache eviction for indexedDB in Edge. And I need help to determine the max cache size for my app.

I took a look into the official documentation on this: https://docs.microsoft.com/en-us/previous-versions/windows/internet-explorer/ie-developer/compatibility/mt732551(v=vs.85)

which seems outdated because when I tried myself, there is no 500MB limit per domain when we have disk volume larger than 128GB.

Because the app also needs to support device with limited storage such as surface hub 1st gen which has 8GB, it makes 10MB per each domain in that case unacceptable since any entry stored by my app will be above 10MB.

Could you please answer my below questions?

1. What is the most updated IndexedDB limit for Edge for different disk volumes?

2. Can we override the limit control if we need more space in Edge? (I know we can do it in some other browsers)

3. Will edge throw errors when the cache is full (e.g. QuotaExceededError) that we can catch (I cannot find any now..)?

4. Will edge supports cache auto eviction in the future?

I am using Microsoft Edge 42.17134.1.0

Thanks!


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