How confident can we be in the WebView counter? I'd expect this to be used more in WebView than on other platforms.

/Daniel

On 2022-01-26 01:13, Chris Harrelson wrote:
Hi, could you outline the use counter values for other platforms? Also, is there something special about Android that leads you to want to disable only there?

On Tue, Jan 25, 2022 at 1:58 PM Brianna Goldstein <brgoldst...@chromium.org> wrote:


        Primary eng (and PM) emails

    brgoldst...@google.com <mailto:brgoldst...@google.com>,
    m...@chromium.com <mailto:m...@google.com>, jadekess...@chromium.com
    <mailto:jadekess...@chromium.com>


        Explainer

    Storage partitioning explainer
    
<https://github.com/wanderview/quota-storage-partitioning/blob/main/explainer.md#storage-apis>


        Summary

    We propose to remove support for loading media via filesystem://
    URLs on Android.



        Motivation

    As part of our storage partitioning efforts, we will need to
    update Filesystem URLs to be partitioned by StorageKey rather than
    by Origin. Doing this will add complexity since the entire current
    codepath on Android is not dependent on Blink where StorageKey
    currently lives. On Android only 0.0000001% of URLs loaded by
    <audio> or <video> use the filesystem:// URL scheme and we
    consider this low enough usage to remove support, rather than do
    the work of partitioning. Note that this removal is only for
    Android. On other platforms there will be no effect and media
    playback of filesystem:// URLs will continue to work.


        Blink component

    Blink>Storage
    
<https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EStorage>


        Initial public proposal

    None


        TAG review

    None


        TAG review status

    N/A


        Interoperability and Compatibility Risk


          Interoperability risk:

    The filesystem:// URL scheme was never widely adopted and is only
    implemented by Chrome. Therefore there should be no
    interoperability risks associated with this feature depreciation.


          Compatibility risk:

    This feature is very low usage as only 0.0000001% of URLs loaded
    by <audio> or <video> use the filesystem:// URL scheme. Therefore
    the expected compatibility risk is very low.


        Alternative implementation suggestion for web developers

    Developers can continue to load media from other schemes (http,
    https, blob, file, etc.).


        Usage information from UMA

    Android Chrome (Browser App): 0.0000001%

    Android Webview: 0.0%


        Tracking Bug

    https://bugs.chromium.org/p/chromium/issues/detail?id=1258029
    <https://bugs.chromium.org/p/chromium/issues/detail?id=1258029>


        Entry on the feature dashboard

    https://chromestatus.com/feature/5632429577469952
    <https://chromestatus.com/feature/5632429577469952>


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