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Error: Incorrect Header Check

Symptom

Error: Incorrect Header Check

Pasted_Image_1_29_18__3_59_PM.png

Environment

Release 12+, Microsoft Web Servers (IIS)

Solution

Supplier needs to send data in gzip compression format

Cause

Microsoft servers incorrectly deliver raw deflate for "Deflate" (i.e. RFC 1951 data without the zlib RFC 1950 wrapper) which Coupa cannot decompress.