Image with valid Alt text falsely flagged as accessibility error [Classic/Flex UI]

A page is flagged for an accessibility error despite having valid Alt text.

Reviewed September 24, 2021

The Issue

An image with valid Alt text is flagged as lacking Alt text in an accessibility test (e.g. SiteImprove).

As reported, the image was in Assets and displayed as part of a Photo Gallery.

The image did have Alt text, in the Description field, but the text had a leading space (" abc..."), which apparently confused the test.

Workaround

Removing the leading space and republishing the image resolved the error.

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