Cannot use chrome_settings_overrides for overriding Search Provider

问题

I have the following declaration in my manifest.json, following Google's instructions:

{
  ...
  "chrome_settings_overrides": {
    "search_provider": {
      "name": "My Name",
      "keyword": "My Keyword",
      "favicon_url": "icon32.png",
      "search_url": "http://example.com/Home/Search?keyword={searchTerms}",
      "encoding": "UTF-8",
      "is_default": true
    }
  },
  ...
}

However, I cannot load the manifest with that part at all (removing it will make it work). The message is receive is:

Failed to load extension from: D:\Chrome\SearchExtensions Empty dictionary for 'chrome_settings_overrides'.

What am I doing wrong? What is the proper way doing this?

回答1:

The documentation says about "favicon_url":

may only be omitted if prepopulated_id is set.

And "favicon_url" must be a fully qualified http or https url according to chromium source code:

if (!CreateManifestURL(*overrides->search_provider->favicon_url)) {
  *error = ...
.........................................
// CreateManifestURL function:
if (!manifest_url->is_valid() ||
    !manifest_url->SchemeIsHTTPOrHTTPS())
  return std::unique_ptr<GURL>();  // <<<< returns an empty value that sets the error

来源：https://stackoverflow.com/questions/39177401/cannot-use-chrome-settings-overrides-for-overriding-search-provider