whatwg / mimesniff

MIME Sniffing Standard

https://mimesniff.spec.whatwg.org/

whatwg/mimesniff Issues

Web platform tests disagree on how to handle blob content-type validation
Updated a month ago14
6.2.2. Signature for WebM will always return false.
Closed 3 months ago
Parse a Vint algorithm is incorrect due to off by one loop.
Closed 3 months ago
Missing image codecs
Updated 4 months ago29
Some context-specific sniffing algorithms don't check if supplied MIME type is undefined
Updated 6 months ago2
Navigating to a text/plain-labeled PNG file
Updated 9 months ago
I believe "application/font-off" is a typo for "application/font-otf"
Updated 9 months ago2
Confusing step in `parse a vint`
Updated 9 months ago
Various issues in the "Signature for mp3 without id3" algorithm
Updated 9 months ago
Pointless loop in "Sniffing a mislabeled feed"
Updated 9 months ago
Should we still sniff if Content-Type is text/html?
Updated 9 months ago7
Add application/x-tar as an archive MIME type
Closed a year ago
Add application/x-bzip2 as a ZIP-based MIME type
Closed a year ago4
re-classify application/x-gzip as a ZIP-based MIME type
Closed a year ago2
Add more recent HTML elements to rules for identifying an unknown MIME type
Closed 2 years ago6
RFC 2046 does not define the term "internet media type"
Updated 3 years ago2
Matching pattern for aac (and aac with ID3) in adts stream
Updated 3 years ago2
Browsers don't sniff basic audio
Closed 3 years ago2
Scope and structure of mimesniff
Updated 3 years ago3
MP3 without ID3 algorithm has various problems
Updated 3 years ago12
Browsers ignore tag-terminating byte when sniffing scriptable patterns
Updated 3 years ago1
Should `isom` brand be used to detect MP4?
Updated 3 years ago1
Effect of nosniff
Updated 3 years ago1
MIMESniff should really mention X-Content-Type-Options
Updated 3 years ago2
The values of the MIME type parameters aren't parsed as ASCII strings
Closed 3 years ago3
Signature for WebM algorithm is unclear
Updated 3 years ago7
"parse a vint" algorithm does not align with "matches the signature for WebM" algorithm
Updated 3 years ago1
Issue with description of WebM sniffing
Updated 3 years ago1
7 - 7.1 incoherence
Updated 3 years ago
The "archive" MIME type definition excludes some "zip" MIME types.
Updated 3 years ago2
Supplied MIME type from file system is unclear
Updated 3 years ago1
Should JSON MIME Types include all `*/*+json`?
Updated 3 years ago12
Step 5.2.8 in 7.3
Updated 4 years ago
Add application/x-xz as an archive MIME type
Closed 4 years ago8
`text/json` is not a valid JSON MIME type
Updated 5 years ago1
Sniffing algorithms style
Updated 5 years ago1
Clarify scope of check-for-apache-bug flag
Updated 5 years ago
Clarify sniffing of empty resources
Updated 5 years ago
Indicate why PostScript isn't a scriptable MIME type
Updated 5 years ago1
Review IETF issues
Updated 5 years ago
Define "resource"
Updated 5 years ago1
Define "context"
Updated 5 years ago1
MIME type parsing: stop treating 0x0C as whitespace
Closed 6 years ago3
Describe CORB confirmation sniffing
Updated 6 years ago1
Serializing of MIME types without space before parameters might be problematic
Closed 6 years ago3
All `text` JavaScript types are deprecated according to RFC 4329
Closed 6 years ago5
Detect XML SOAP Envelop without Prolog
Closed 6 years ago1
Supplied mime type doesn't parse the mime type.
Updated 6 years ago
Parameter value "" (quoted-string, empty string value)
Closed 6 years ago2
http.DetectContentType do not return gbk charset by the mimesniff spec.
Closed 6 years ago4