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Stevo
Stevo

Reputation: 2639

Angular $sce blocking my audio blob src

I am trying to use angular ngRepeat with the html5 audio tag. I have the html:

    <li ng-repeat="recordings in recordinglist">
        <audio controls ng-src="{{recordings}}"></audio>
   </li>

and the js:

    $scope.$apply($scope.recordinglist.push("blob:http%3A//localhost%3A9000/67ecfa65-3394-45a6-8f29-42f3421a2727"));

But angular's same origin checking is causing an error to be thrown on interpolation:

Error: [$interpolate:interr] Can't interpolate: {{recordings}}
Error: [$sce:insecurl] Blocked loading resource from url not allowed by $sceDelegate policy.  URL: blob:http%3A//localhost%3A9000/67ecfa65-3394-45a6-8f29-42f3421a2727

This just seems silly. It's not interpolating a local resource. I imagine there's a way to do this correctly - or should I file a bug report?

Upvotes: 14

Views: 16235

Answers (5)

fraserxu
fraserxu

Reputation: 420

I have the same problem when trying to display a blob src for webrtc video before, and I fixed it by using $sce service:

angular.module('moduleName', ['ngSanitize'])
.controller('ctrName', ['$sce', function($sce) {
  $scope.recordings = $sce.trustAsResourceUrl(recordings);
}])

You may also check the doc here.

Upvotes: 20

Mahesh
Mahesh

Reputation: 3997

When getting the blob from a file reader, you might have to add $scope.$apply() to trigger the watch and bind accordingly.

InitRecording = function() {
    var reader = new FileReader();
    reader.onload = function() {
        audioSRC = $sce.trustAsResourceUrl(reader.result);
        $scope.$apply();
    };
    reader.readAsDataURL(recordedBlob);
}

Upvotes: 0

Hassan Siddique
Hassan Siddique

Reputation: 1590

Best way to solve this is to create a trusted filter.

app.filter('trusted', ['$sce', function ($sce) {
return function(url) {
    return $sce.trustAsResourceUrl(url);
};}]);

And Use this filter in ng-src.

<li ng-repeat="recordings in recordinglist">
    <audio controls ng-src="{{recordings |trusted}}"></audio></li>

Upvotes: 0

elewinso
elewinso

Reputation: 2521

For me the following solved the problem:

$sce.trustAsResourceUrl

see SO question with more detailed explanation here

Upvotes: 4

Endless
Endless

Reputation: 37786

Faced a similar problem with my blob images... Try this:

Basically it allows any blob image in src 

app.config( ['$compileProvider', function($compileProvider){   
  $compileProvider.imgSrcSanitizationWhitelist(/^\s*(blob):/);

  // another sample to allow diffrent kinds of url in <a>
  // $compileProvider.urlSanitizationWhitelist(/^\s*(https?|ftp|mailto):/);
}]);

Upvotes: 1

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