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Code Issues Releases Wiki Activity

Add sanity checks

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In rare circumstances, it's possible the content
script lose access to the background page, best
to check against this to avoid spurious console
errors.
This commit is contained in:
Raymond Hill 2019-09-29 12:26:58 -04:00
parent c95da8f5c5
commit bf99623a54
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GPG Key ID: 25E1490B761470C2
1 changed files with 3 additions and 1 deletions
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src/js/contentscript.js
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@ -148,6 +148,7 @@ vAPI.SafeAnimationFrame = function(callback) {
vAPI.SafeAnimationFrame.prototype = {
start: function(delay) {
if ( vAPI instanceof Object === false ) { return; }
if ( delay === undefined ) {
if ( this.fid === undefined ) {
this.fid = requestAnimationFrame(( ) => { this.onRAF(); } );
@ -1454,7 +1455,8 @@ vAPI.bootstrap = (function() {
// to try bootstrapping again later.
const bootstrapPhase1 = function(response) {
if ( response === null ) { return; }
if ( response instanceof Object === false ) { return; }
vAPI.bootstrap = undefined;
// cosmetic filtering engine aka 'cfe'