Beacon API
E924907
The Beacon API is a web platform feature that enables asynchronous, non-blocking transmission of small amounts of data (such as analytics or diagnostics) from the browser to a server, even when a page is unloading.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Beacon API canonical | 1 |
| Navigator.sendBeacon API | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11429324 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Beacon API Context triple: [W3C Web Application technologies, includesStandard, Beacon API]
-
A.
Project Beacon
Project Beacon is a key field formation of India's Border Roads Organisation responsible for constructing and maintaining strategic road infrastructure in the Jammu and Kashmir region.
-
B.
Beacons
The Beacons are the athletic teams representing the University of Massachusetts Boston in intercollegiate sports.
-
C.
Beacons
The Beacons is the nickname for the athletic teams representing Valparaiso University in collegiate sports.
-
D.
Beacon Communications
Beacon Communications is a film and television production company known for producing a range of feature films and entertainment content.
-
E.
Beacon
Beacon is a small Hudson River city in New York State known for its vibrant arts scene, historic industrial roots, and the contemporary art museum Dia Beacon.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Beacon API Target entity description: The Beacon API is a web platform feature that enables asynchronous, non-blocking transmission of small amounts of data (such as analytics or diagnostics) from the browser to a server, even when a page is unloading.
-
A.
Project Beacon
Project Beacon is a key field formation of India's Border Roads Organisation responsible for constructing and maintaining strategic road infrastructure in the Jammu and Kashmir region.
-
B.
Beacons
The Beacons are the athletic teams representing the University of Massachusetts Boston in intercollegiate sports.
-
C.
Beacons
The Beacons is the nickname for the athletic teams representing Valparaiso University in collegiate sports.
-
D.
Beacon Communications
Beacon Communications is a film and television production company known for producing a range of feature films and entertainment content.
-
E.
Beacon
Beacon is a small Hudson River city in New York State known for its vibrant arts scene, historic industrial roots, and the contemporary art museum Dia Beacon.
- F. None of above. chosen
Statements (53)
| Predicate | Object |
|---|---|
| instanceOf |
Web API
ⓘ
browser feature ⓘ web platform feature ⓘ |
| advantageOver |
Fetch API for non-blocking unload requests
ⓘ
XMLHttpRequest for unload-time analytics ⓘ |
| alsoKnownAs |
Navigator.sendBeacon API
ⓘ
linked to:
Beacon API
|
| canSend |
ArrayBufferView
ⓘ
Blob ⓘ FormData ⓘ URLSearchParams ⓘ USVString ⓘ |
| comparedWith |
Fetch API
ⓘ
XMLHttpRequest ⓘ
linked to:
XMLHttpRequest specification
|
| definedIn | W3C Beacon specification ⓘ |
| designedFor |
analytics beacons
ⓘ
background data sending ⓘ crash or error reporting ⓘ performance monitoring ⓘ reliable transmission during page unload ⓘ sending data when a page is unloading ⓘ |
| doesNotBlock |
navigation
ⓘ
page close ⓘ page unload ⓘ |
| ensures | data is queued for transfer before page unload completes ⓘ |
| exposedOn | Navigator interface ⓘ |
| hasLimitation |
no progress events
ⓘ
no response body is exposed to script ⓘ no way to read HTTP status code in script ⓘ only POST method is supported ⓘ payload size is user-agent dependent and typically small ⓘ |
| introducedTo | improve reliability of analytics pings ⓘ |
| partOf |
Web Platform
ⓘ
linked to:
Web platform
|
| primaryMethod | navigator.sendBeacon ⓘ |
| returns |
false if the data cannot be queued
ⓘ
true if the user agent is able to successfully queue the data for transfer ⓘ |
| returnType | boolean ⓘ |
| securityModel |
subject to CORS when sending cross-origin requests
ⓘ
subject to same-origin policy for some use cases ⓘ |
| standardizedBy | World Wide Web Consortium ⓘ |
| supportedBy |
Google Chrome
ⓘ
Microsoft Edge ⓘ Mozilla Firefox ⓘ Safari ⓘ |
| supports |
POST requests
ⓘ
analytics data transmission ⓘ asynchronous data transmission ⓘ diagnostic data transmission ⓘ fire-and-forget HTTP requests ⓘ non-blocking data transmission ⓘ sending small amounts of data ⓘ telemetry data transmission ⓘ |
| uses |
Content-Type header inferred from body type
ⓘ
HTTP POST method ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Beacon API Description of subject: The Beacon API is a web platform feature that enables asynchronous, non-blocking transmission of small amounts of data (such as analytics or diagnostics) from the browser to a server, even when a page is unloading.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Beacon API