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8 results for "Downlink":
NetworkInformation.downlink - Web APIs
WebAPINetworkInformationdownlink
the downlink read-only property of the networkinformation interface returns the effective bandwidth estimate in megabits per second, rounded to the nearest multiple of 25 kilobits per seconds.
... note that chrome-based browsers do not conform to the specification, and arbitrarily cap the reported downlink at a maximum of 10 mbps as an anti-fingerprinting measure.
... syntax var downlink = networkinformation.downlink value a double.
... specifications specification status comment network information apithe definition of 'downlink' in that specification.
NetworkInformation.downlinkMax - Web APIs
WebAPINetworkInformationdownlinkMax
the networkinformation.downlinkmax read-only property returns the maximum downlink speed, in megabits per second (mbps), for the underlying connection technology.
... syntax var max = networkinformation.downlinkmax return value an unrestricted double representing the maximum downlink speed, in megabits per second (mb/s), for the underlying connection technology.
... function logconnectiontype() { var connectiontype = 'not supported'; var downlinkmax = 'not supported'; if ('connection' in navigator) { connectiontype = navigator.connection.effectivetype; if ('downlinkmax' in navigator.connection) { downlinkmax = navigator.connection.downlinkmax; } } console.log('current connection type: ' + connectiontype + ' (downlink max: ' + downlinkmax + ')'); } logconnectiontype(); navigator.connection.addeventlistener('change', logconnectiontype); specifications specification status comment network information apithe definition of 'downlinkmax' in that specification.
Client hints - MDN Web Docs Glossary: Definitions of Web-related terms
GlossaryClient hints
accept-ch: dpr, width, viewport-width, downlink and / or <meta http-equiv="accept-ch" content="dpr, width, viewport-width, downlink"> when a client receives the accept-ch header, if supported, it appends client hint headers that match the advertised field-values.
... for example, based on accept-ch example above, the client could append dpr, width, viewport-width, and downlink headers to all subsequent requests.
... example varying response: vary: accept, dpr, width, viewport-width, downlink see also client hints headers vary http header ...
Index - Web APIs
WebAPIIndex
2692 networkinformation.downlink api, experimental, network information api, networkinformation, property, reference, downlink the downlink read-only property of the networkinformation interface returns the effective bandwidth estimate in megabits per second, rounded to the nearest multiple of 25 kilobits per seconds.
... 2693 networkinformation.downlinkmax api, experimental, network information api, networkinformation, property, read-only, reference the networkinformation.downlinkmax read-only property returns the maximum downlink speed, in megabits per second (mbps), for the underlying connection technology.
...this value is determined using a combination of recently observed, round-trip time and downlink values.
NetworkInformation - Web APIs
WebAPINetworkInformation
networkinformation.downlink read only returns the effective bandwidth estimate in megabits per second, rounded to the nearest multiple of 25 kilobits per seconds.
... networkinformation.downlinkmax read only returns the maximum downlink speed, in megabits per second (mbps), for the underlying connection technology.
...this value is determined using a combination of recently observed round-trip time and downlink values.
Effective connection type - MDN Web Docs Glossary: Definitions of Web-related terms
GlossaryEffective connection type
the values of 'slow-2g', '2g', '3g', and '4g' are determined using observed round-trip times and downlink values.
... table of effective connection types ect minimum rtt maximum downlink explanation slow-2g 2000ms 50 kbps the network is suited for small transfers only such as text-only pages.
NetworkInformation.effectiveType - Web APIs
WebAPINetworkInformationeffectiveType
this value is determined using a combination of recently observed, round-trip time and downlink values.
Cross-Origin Resource Sharing (CORS) - HTTP
WebHTTPCORS
y the user agent (for example, connection, user-agent, or the other headers defined in the fetch spec as a “forbidden header name”), the only headers which are allowed to be manually set are those which the fetch spec defines as a “cors-safelisted request-header”, which are: accept accept-language content-language content-type (but note the additional requirements below) dpr downlink save-data viewport-width width the only allowed values for the content-type header are: application/x-www-form-urlencoded multipart/form-data text/plain no event listeners are registered on any xmlhttprequestupload object used in the request; these are accessed using the xmlhttprequest.upload property.