<oj-file-picker> Component Does Not Handle MIME Types Consistently Across Browsers (Doc ID 2873090.1)

Last updated on JANUARY 06, 2023

Applies to:

Symptoms

A Visual builder Cloud Service (VBCS) application has a page with the following code

The page has simply a <oj-file-picker> component that is used to upload a Comma Separated Values (CSV) file and to print out its details, like the Multipurpose Internet Mail Extensions (MIME) file type.

ACTUAL BEHAVIOR
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When uploading a CSV file the MIME file type is recognized differently by different browsers when using the above code in a VBCS application.

Specifically, what is observed is that in Chrome browser the CSV file is recognized as "text/csv" MIME type, while in Mozilla browser it is recognized as "application/vnd.ms-excel" MIME type.

This causes issues if the file contents and its MIME type are used to invoke a REpresentational State Transfer (REST) endpoint expecting a specific MIME type rather than the other for a CSV file.

EXPECTED BEHAVIOR
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The determined MIME type should be consistent across browsers when invoking a REST endpoint from a VBCS application.

Changes

Cause

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