The soonest that the JavaScript or CSS will be injected into the tab.
Type
Values of this type are strings. Possible values are: "document_start", "document_end", "document_idle".
"document_start": corresponds toloading. The DOM is still loading."document_end": corresponds tointeractive. The DOM has finished loading, but resources such as scripts and images may still be loading."document_idle": corresponds tocomplete. The document and all its resources have finished loading.
The default value is "document_idle".
Browser compatibility
BCD tables only load in the browser
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Acknowledgements
This API is based on Chromium's chrome.extensionTypes API. This documentation is derived from extension_types.json in the Chromium code.
Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.