Why plug-in is required to view SVG files?

Why plug-in is required to view SVG files?

- The <embed> and <object> tags are embedded into HTML page.

- The type attribute might be set to incompatible MIME type.

- The SVG MIME type is image/svg+xml.

- To identify the <embed> and <object> tags along with SVG, the SVG plug-in is needed.

- The plug-in need to be properly set. The SVG MIME type sometimes set as image/svg-xml. This will not recognize the <embed> and <object> tags.