Chart image in email from Google spreadsheet with google-apps-script returns white image

Question

I\'m sending a report every night to my own gmail address. Suddenly since a week or so the image of the chart has turned blank. There is only one chart.

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Answer 1

The blank image is due to a sharing permissions issue. Change the share settings of the spreadsheet to "Anyone who has the link can view" and the chart will then be exportable from your script.