Why my Blog with SPA framework occurs re-download of whole site with page transition.

I was surprised that each page transition, the whole site is re-downloaded! worst! I have no idea how can I make that terrible behavior?

I surveyed my blog code, then I've found that I had used <a> tag for page moving even I should have used <router-link> in my self-made TAG component! Oh!

I'm ashamed that I didn't make sense of the difference between <a> and <router-link>, and this my ignorance make my blog UX as rubbish.

I would be more careful document reader.