An object containing information about the sender of a message or connection request; this is passed to the
runtime.onMessage()
listener.
It is also a property of
runtime.Port
, but only in the
Port
instance passed into the
runtime.onConnect()
or
runtime.onConnectExternal()
listeners.
Values of this type are objects. They contain the following properties:
tab
可选
tabs.Tab
。
tabs.Tab
which opened the connection. This property will only be present when the connection was opened from a tab (including content scripts).
frameId
可选
integer
. The frame that opened the connection. Zero for top-level frames, positive for child frames. This will only be set when
tab
有设置。
id
可选
string
. The ID of the extension that sent the message, if the message was sent by an extension. If the sender set an ID explicitly using the
应用程序
key in manifest.json, then
id
will have this value. Otherwise it will have the ID that was generated for the sender.
url
可选
string
. The URL of the page or frame hosting the script that sent the message.
If the sender is a script running in an extension page (such as a
background page
，
options page
，或
browser action
or
page action
popup), the URL will be in the form
"moz-extension://<extension-internal-id>/path/to/page.html"
. If the sender is a background script and you haven't included a background page, it will be
"moz-extension://<extension-internal-id>/_generated_background_page.html"
.
>If the sender is a script running in a web page (including content scripts as well as normal page scripts), then
url
will be the web page URL. If the script is running in an iframe,
url
will be the iframe's URL.
tlsChannelId
可选
string
. The TLS channel ID of the page or frame that opened the connection, if requested by the extension, and if available.
BCD tables only load in the browser
注意：
This API is based on Chromium's
chrome.runtime
API. This documentation is derived from
runtime.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.
最后修改： , 由 MDN 贡献者