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readAsDataURL should be more precise about the data URL contents #104

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domenic opened this issue Jun 20, 2018 · 2 comments
Open

readAsDataURL should be more precise about the data URL contents #104

domenic opened this issue Jun 20, 2018 · 2 comments

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@domenic
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domenic commented Jun 20, 2018

In particular, it appears all browsers base64-encode the contents; see jsdom/jsdom#2269 for the original report.

Probably it'd be best to give the exact algorithm for creating the string from the contents of the type attribute and the bytes of the Blob.
@annevk
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annevk commented Jun 21, 2018

See also whatwg/fetch#665 which this would tie into (if someone wants to work on that, feel free, happy to assist).

@inexorabletash
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Re: "creating the string from the contents of the type attribute" - just a note in case someone tackles this. Beware of the gotcha associated with #43 - namely, as the spec is currently written, the value returned by the type attribute's getter and the internal type of the blob (which isn't clearly documented) differ if the type is not a parseable MIME type.

@mkruisselbrink mkruisselbrink mentioned this issue Mar 14, 2019
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@domenic @inexorabletash @annevk