I want to show a splash page once I enter a URL and search. For example, if I go to https://youtube.com, then my Chrome extension will first show my splashpage.html. I was researching the override pages in the documentation, but it seems that I can only use "chrome_url_overrides" for new tabs, bookmark manager, and history.
My manifest.json has a newtab that opens up my "splashpage.html" when a new tab is entered. I would like to do this same action, but before the initial URL is loaded.
manifest.json
{
"manifest_version": 2,
"name": "Splash",
"version": "1",
"author": "LC",
"browser_action": { "default_title": "Have a good day", "default_popup": "popup.html" },
"chrome_url_overrides" : { "newtab": "splashpage.html"},
"permissions": ["activeTab"]
}