Storage access policy: Block cookies from trackers
dom storage: localstorage: window.localstorage: read and write attempts throw a securityerror exception.
... indexeddb: attempting to access the indexeddb factory object throws a securityerror exception.
... messaging and workers: broadcast channel: attempts to create a new broadcastchannel will throw a securityerror exception.
...And 3 more matches

Sensor APIs - Web APIs
if (error.name === 'securityerror') { // see the note above about feature policy.
...}); an alternative approach is to attempt to use the error and listen for the securityerror.
... const sensor = new absoluteorientationsensor(); sensor.start(); sensor.onerror = event => { if (event.error.name === 'securityerror') console.log("no permissions to use absoluteorientationsensor."); }; the following table describes for each sensor type, the name required for the permissions api, the <iframe> element's allow attribute and the feature-policy directive.

CanvasRenderingContext2D.getImageData() - Web APIs
securityerror the canvas contains or may contain pixels which were loaded from an origin other than the one from which the document itself was loaded.
... to avoid securityerror being thrown in this situation, configure cors to allow the source image to be used in this way.

MediaDevices.getUserMedia() - Web APIs
older versions of the specification used securityerror for this instead; securityerror has taken on a new meaning.
... securityerror user media support is disabled on the document on which getusermedia() was called.

MediaRecorder.onerror - Web APIs
securityerror the mediastream is configured to disallow recording.
...try again later."); break; case securityerror: shownotification("recording the specified source " + "is not allowed due to security " + "restrictions."); break; default: shownotification("a problem occurred while trying " + "to record the video."); break; } }; /* this would be a good place to create a worker to handle ...

PaymentRequest.show() - Web APIs
securityerror the promise rejects with a securityerror if the call to show() was not in response to a user action, such as a click or keyup event.
... other reasons a securityerror may be thrown are at the discretion of the user agent, and may include situations such as too many calls to show() being made in a short time or show() being called while payment requests are blocked by parental controls.

Signaling and video calling - Web APIs
function handlegetusermediaerror(e) { switch(e.name) { case "notfounderror": alert("unable to open your call because no camera and/or microphone" + "were found."); break; case "securityerror": case "permissiondeniederror": // do nothing; this is the same as the user canceling the call.
...in this example, we ignore "securityerror" and "permissiondeniederror" results, treating refusal to grant permission to use the media hardware the same as the user canceling the call.

How to check the security state of an XMLHTTPRequest over SSL - Web APIs
e = 'securityuntrustedcertificateissuererror'; break; case 90: // sec_error_inadequate_key_usage, sec(90) errname = 'securityinadequatekeyusageerror'; break; case 176: // sec_error_cert_signature_algorithm_disabled, sec(176) errname = 'securitycertificatesignaturealgorithmdisablederror'; break; default: errname = 'securityerror'; break; } } else { // calculating the difference let sslerr = math.abs(nsinsserrorsservice.nss_ssl_error_base) - (status & 0xffff); switch (sslerr) { case 3: // ssl_error_no_certificate, ssl(3) errname = 'securitynocertificateerror'; break; case 4: // ssl_error_bad_certificate, ssl(4) errname = 'securitybadcertifi...
...te_type, ssl(8) errname = 'securityunsupportedcertificatetypeerror'; break; case 9: // ssl_error_unsupported_version, ssl(9) errname = 'securityunsupportedtlsversionerror'; break; case 12: // ssl_error_bad_cert_domain, ssl(12) errname = 'securitycertificatedomainmismatcherror'; break; default: errname = 'securityerror'; break; } } } else { errtype = 'network'; switch (status) { // connect to host:port failed case 0x804b000c: // ns_error_connection_refused, network(13) errname = 'connectionrefusederror'; break; // network timeout error case 0x804b000e: // ns_error_net_timeout, network(14) errname = 'networktimeouterror'; break...

Feature-Policy - HTTP
when this policy is disabled, attempting to set document.domain will fail and cause a securityerror domexception to be be thrown.
...when this policy is enabled, the paymentrequest() constructor will throw a securityerror domexception.

Index - HTTP
when this policy is enabled, the paymentrequest() constructor will throw a securityerror.
...when this policy is enabled, attempting to set document.domain will fail and cause a securityerror domexception to be be thrown.

HTTP Index - HTTP
when this policy is enabled, attempting to set document.domain will fail and cause a securityerror domexception to be be thrown.
...when this policy is disabled, the paymentrequest() constructor will throw a securityerror.

Bluetooth.requestDevice() - Web APIs
securityerror this operation is not permitted in this context due to security concerns.

CSSStyleSheet - Web APIs
notes in some browsers, if a stylesheet is loaded from a different domain, accessing cssrules results in securityerror.

CacheStorage - Web APIs
note: cachestorage always rejects with a securityerror on untrusted origins (i.e.

CanvasCaptureMediaStreamTrack.requestFrame() - Web APIs
this may change in the future, so it would be wise to plan ahead and watch for exceptions such as securityerror (although the specific error that might be thrown is not mentioned in the spec, this is a likely candidate).