It seems your imageUrl have some problem.
You can check document .
Hi, there:
I push a image message to LINE user by messaging API.
The image message is work fine on android and iOS, and image can download by user.
But the image message on windows and mac app, image can not download on preview.
It need click the image to open the original image and click the right bottom download button
It a bug of LINE windows and mac app? Or any solutoin for this?
It seems your imageUrl have some problem.
You can check document .
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