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Setting the listStyleImage property of an Element object causes MSIE 11 to allocate 0x4C bytes for an "image context" structure, which contains a reference to the document object as well as a reference to the same CMarkup object as the document. When the element is removed from the document/document fragment, this image context is freed on the next "draw". However, the code continues to use the freed context almost immediately after it is freed.

Setting the listStyleImage property of an Element object causes MSIE 11 to allocate 0x4C bytes for an "image context" structure, which contains a reference to the document object as well as a reference to the same CMarkup object as the document. When the element is removed from the document/document fragment, this image context is freed on the next "draw". However, the code continues to use the freed context almost immediately after it is freed.