I used node"s fs.readFile to read the contents of a local css file cssData,
and then created a style tag in the head tag of the page, assigning cssData to style.innerHtml,
but the style did not take effect. I checked and found that the style in the front of the style tag was more than one: &-sharp65279, checked the bom head of utf-8 when I went online and said, I output cssData did not find this, do not know how to remove this. How can I remove this BOM header from the style tag?