The tv-get-export-image-link variable controls the value of the src attribute on the HTML img element generated by the $image widget when the value of its source attribute is not the title of a tiddler.

The variable should be a function with the following parameter:

src

The value of the source attribute – equivalent to the image name specified in the shorthand syntax [img[source]]

The ability to override image URIs in this way can be useful when one is using the Node.js configuration to export a static version of a wiki.

Examples