Discussion:
[chromium-html5] Re: Excel (.xls) mime type reported as "" when using FileReader API
John Hennessy
2016-09-26 20:13:02 UTC
Permalink
Just encountered this situation with .xlsx on Windows 10 using Chrome
53.0.2785.116 (Official Build) m (32-bit)

Same result with Word (.docx). Works fine with Firefox. Do use Libre
Office, not MS, but why should Google care?
Hi guys,
Some weeks ago I saw some very odd behaviour when reading Excel (.xls)
files with the FileReader API in Chrome 15 on OSX. The mime type of
Excel files (.xls / application/vnd.ms-excel), is reported as empty in
Chrome, which results in filtering with <input>'s is disallowing Excel
files to be selected.
Bug report: http://code.google.com/p/chromium/issues/detail?id=105382.
I seems to be a OSX specific issue, since I can't reproduce it in
Chrome 15 on Windows, and its present in both Chrome 15 and Chrome
17.0.949.0 canary on OSX.
Can I get you guys to verify this one for me?
http://jsfiddle.net/auchenberg/SQTpj/.
Thanks.
//Kenneth Auchenberg
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PhistucK
2016-09-26 20:18:43 UTC
Permalink
Since the original issue was only reproduced on macOS, maybe comment on
crbug.com/155455 about your configuration.


☆*PhistucK*
Post by John Hennessy
Just encountered this situation with .xlsx on Windows 10 using Chrome
53.0.2785.116 (Official Build) m (32-bit)
Same result with Word (.docx). Works fine with Firefox. Do use Libre
Office, not MS, but why should Google care?
Hi guys,
Some weeks ago I saw some very odd behaviour when reading Excel (.xls)
files with the FileReader API in Chrome 15 on OSX. The mime type of
Excel files (.xls / application/vnd.ms-excel), is reported as empty in
Chrome, which results in filtering with <input>'s is disallowing Excel
files to be selected.
Bug report: http://code.google.com/p/chromium/issues/detail?id=105382.
I seems to be a OSX specific issue, since I can't reproduce it in
Chrome 15 on Windows, and its present in both Chrome 15 and Chrome
17.0.949.0 canary on OSX.
Can I get you guys to verify this one for me?
http://jsfiddle.net/auchenberg/SQTpj/.
Thanks.
//Kenneth Auchenberg
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b***@borrowell.com
2017-12-21 16:38:04 UTC
Permalink
That is incorrect. Firefox (Quantum v57) and Safari (v11) on Mac can read
the MIME type fine, but only Chrome (v61) is reporting the type as "".
Please fix it. Thanks.
Do you have any file type association for XLS on your Macintosh (have you
installed any XLS reader that is run when you run any XLS file)?
If not, do not expect your operating system to recognize it.
☆*PhistucK*
Hi guys,
Some weeks ago I saw some very odd behaviour when reading Excel (.xls)
files with the FileReader API in Chrome 15 on OSX. The mime type of
Excel files (.xls / application/vnd.ms-excel), is reported as empty in
Chrome, which results in filtering with <input>'s is disallowing Excel
files to be selected.
Bug report: http://code.google.com/p/chromium/issues/detail?id=105382.
I seems to be a OSX specific issue, since I can't reproduce it in
Chrome 15 on Windows, and its present in both Chrome 15 and Chrome
17.0.949.0 canary on OSX.
Can I get you guys to verify this one for me?
http://jsfiddle.net/auchenberg/SQTpj/.
Thanks.
//Kenneth Auchenberg
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