Allow reading of TargetMode for external images #1176
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Abstract:
This patch changes the reader in order to handle TargetMode="External"
Closes:
#1173
Explanation:
When reading from documents.xml.rels, we not often see external images, like this:
<Relationship Id="rId4" Type="http://schemas.openxmlformats.org/officeDocument/2006/relationships/image" Target="https://somewhere/image.png" TargetMode="External"/>The TargetMode needs to be read and understood, to NOT default to a ZIP container for type "image" if the image is external.
Failing to do so results in an InvalidImageException while reading the file.