Enum RequestDestination 

pub enum RequestDestination {
    Audio,
    AudioWorklet,
    Document,
    Embed,
    Font,
    Frame,
    IFrame,
    Image,
    Manifest,
    None,
    Object,
    PaintWorklet,
    Report,
    Script,
    ServiceWorker,
    SharedWorker,
    Style,
    Track,
    Video,
    WebIdentity,
    Worker,
    Xslt,
}

The Request Destination specifies what the destination of this fetch is.

Variants

Audio

HTML <audio>

AudioWorklet

audioScript.addModule()

Document

A website is loaded, and this is e.g. the HTML document.

Embed

HTML <embed>

Font

CSS @font-face

Frame

HTML <frame>

IFrame

HTML <iframe>

Image

"" initiator

• <img src>
• /favicon resource
• SVG <image>
• CSS background-image
• CSS cursor
• CSS list-style-image

imageset initiator

• HTML <img srcset>
• HTML <picture>

Manifest

<link rel=manifest>

None

The empty string "". This can come from one of:

"" initiator

1. navigator.sendBeacon()
2. EventSource
3. <a ping="">
4. <area ping="">
5. fetch()
6. XMLHttpRequest
7. WebSocket
8. Cache API

download initiator

• HTML download attribute
• Save Link As… in the browser UI

prefetch initiator

• HTML <link rel=prefetch>

prerender initiator

• HTML <link rel=prerender>

Object

HTML <object>

PaintWorklet

CSS.paintWorklet.addModule()

Report

CSP, NEL reports.

Script

• <script>
• importScripts()

ServiceWorker

navigator.serviceWorker.register()

SharedWorker

SharedWorker

Style

• HTML <link rel=stylesheet>
• CSS @import

Track

HTML <track>

Video

HTML <video>

WebIdentity

Federated Credential Management requests

Worker

Worker

Xslt

<?xml-stylesheet>

Implementations

impl RequestDestination

pub fn as_str(&self) -> &str

Get the normative string representation, as per Fetch.

pub fn is_script_like(&self) -> bool

Specifies if the request is initiated by a script load, or activated by some features in JavaScript.

Specification Warning

Algorithms that use script-like should also consider “xslt” as that too can cause script execution. It is not included in the list as it is not always relevant and might require different behavior.

Specifications

• Fetch API

Trait Implementations

impl AsRef<str> for RequestDestination

fn as_ref(&self) -> &str

Converts this type into a shared reference of the (usually inferred) input type.

impl Clone for RequestDestination

fn clone(&self) -> RequestDestination

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RequestDestination

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for RequestDestination

fn default() -> RequestDestination

Returns the “default value” for a type.

impl Ord for RequestDestination

fn cmp(&self, other: &RequestDestination) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for RequestDestination

fn eq(&self, other: &RequestDestination) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for RequestDestination

fn partial_cmp(&self, other: &RequestDestination) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for RequestDestination

impl Eq for RequestDestination

impl StructuralPartialEq for RequestDestination