How to prevent <Webview> from loading script from specified URLs ?

[XiaohuChen]

Excuse me, I want to know if Electron is able to prevent Webview tag from loading script from specified URL ? Something like a blacklist. If Electron Webview tag can do that, how ? Thanks !

For example, if I use webview tag to embed 'www.google.com', but I don't need googleAds, so, Can I prevent from loading googleAds script ?

Thanks !

[myfrndjk]

Yes, you can block googleads script before it make request to server. If you want to implement adblock feature look at the discussion link below

Using session.defaultSession.webRequest.onBeforeRequest you can block any url before it make request to server doc : https://github.com/electron/electron/blob/master/docs/api/web-request.md Discussion : https://discuss.atom.io/t/resolved-adblock-for-electron-app/39396/10

Sample:

session.defaultSession.webRequest.onBeforeRequest(['*://*./*'], function(details, callback) {

        var test_url = details.url;
        var check_block_list =/\.(gr|hk||fm|eu|it|es|is|net|ke|me||tz|za|zm|uk|us|in|com|de|fr|zw|tv|sk|se|php|pk|pl)\/ads?[\-_./\?]|(stats?|rankings?|tracks?|trigg|webtrends?|webtrekk|statistiche|visibl|searchenginejournal|visit|webstat|survey|spring).*.(com|net|de|fr|co|it|se)|cloudflare|\/statistics\/|torrent|[\-_./]ga[\-_./]|[\-_./]counter[\-_./\?]|ad\.admitad\.|\/widgets?[\-_./]?ads?|\/videos?[\-_./]?ads?|\/valueclick|userad|track[\-_./]?ads?|\/top[\-_./]?ads?|\/sponsor[\-_./]?ads?|smartadserver|\/sidebar[\-_]?ads?|popunder|\/includes\/ads?|\/iframe[-_]?ads?|\/header[-_]?ads?|\/framead|\/get[-_]?ads?|\/files\/ad*|exoclick|displayad|\ajax\/ad|adzone|\/assets\/ad*|advertisement|\/adv\/*\.|ad-frame|\.com\/bads\/|follow-us|connect-|-social-|googleplus.|linkedin|footer-social.|social-media|gmail|commission|adserv\.|omniture|netflix|huffingtonpost|dlpageping|log204|geoip\.|baidu|reporting\.|paypal|maxmind|geo\.|api\.bit|hits|predict|cdn-cgi|record_|\.ve$|radar|\.pop|\.tinybar\.|\.ranking|.cash|\.banner\.|adzerk|gweb|alliance|adf\.ly|monitor|urchin_post|imrworldwide|gen204|twitter|naukri|hulu.com|baidu|seotools|roi-|revenue|tracking.js|\/tracking[\-_./]?|elitics|demandmedia|bizrate|click-|click\.|bidsystem|affiliates?\.|beacon|hit\.|googleadservices|metrix|googleanal|dailymotion|ga.js|survey|trekk|visit_|arcadebanners?|visitor\.|ielsen|cts\.|link_|ga-track|FacebookTracking|quantc|traffic|evenuescien|roitra|pixelt|pagetra|metrics|[-_/.]?stats?[.-_/]?|common_|accounts\.|contentad|iqadtile|boxad|audsci.js|ebtrekk|seotrack|clickalyzer|youtube|\/tracker\/|ekomi|clicky|[-_/.]?click?[.-_/]?|[-_/.]?tracking?[.-_/]?|[-_/.]?track?[.-_/]?|ghostery|hscrm|watchvideo|clicks4ads|mkt[0-9]|createsend|analytix|shoppingshadow|clicktracks|admeld|google-analytics|-analytic|googletagservices|googletagmanager|tracking\.|thirdparty|track\.|pflexads|smaato|medialytics|doubleclick|cloudfront|-static|-static-|static-|sponsored-banner|static_|_static_|_static|sponsored_link|sponsored_ad|googleadword|analytics\.|googletakes|adsbygoogle|analytics-|-analytic|analytic-|googlesyndication|google_adsense2|googleAdIndexTop|\/ads\/|google-ad-|google-ad?|google-adsense-|google-adsense.|google-adverts-|google-adwords|google-afc-|google-afc.|google\/ad\?|google\/adv\.|google160.|google728.|_adv|google_afc.|google_afc_|google_afs.|google_afs_widget|google_caf.js|google_lander2.js|google_radlinks_|googlead|googleafc.|googleafs.|googleafvadrenderer.|googlecontextualads.|googleheadad.|googleleader.|googleleads.|googlempu.|ads_|_ads_|_ads|easyads|easyads|easyadstrack|ebayads|[.\-_/\?](ads?|clicks?|tracks?|tracking|logs?)[.\-_/]?(banners?|mid|trends|pathmedia|tech|units?|vert*|fox|area|loc|nxs|format|call|script|final|systems?|show|tag\.?|collect*|slot|right|space|taily|vids?|supply|true|targeting|counts?|nectar|net|onion|parlor|2srv|searcher|fundi|nimation|context|stats?|vertising|class|infuse|includes?|spacers?|code|images?|vers|texts?|work*|tail|track|streams?|ability||world*|zone|position|vertisers?|servers?|view|partner|data)[.\-_/]?/gi
        var check_white_list =/status|premoa.*.jpg|rakuten|nitori-net|search\?tbs\=sbi\:|google.*\/search|ebay.*static.*g|\/shopping\/product|aclk?|translate.googleapis.com|encrypted-|product|www.googleadservices.com\/pagead\/aclk|target.com|.css/gi;
        var block_me = check_block_list.test(test_url);
        var release_me = check_white_list.test(test_url);

        if(release_me){
            callback({cancel: false})
        }else if(block_me){
            callback({cancel: true});

        }else{
            callback({cancel: false})
        }

});

[MarshallOfSound]

@myfrndjk solution looks good to me.

In the future, GitHub issues are for feature requests and bug reports, questions about using Electron should be directed to the community or to the Slack Channel.

[XiaohuChen]

@myfrndjk OK, Thanks very much!

[wuyue92tree]

@myfrndjk I try it, but it's not work when i call a ajax.

Acturally, it's ok！Thanks.