disable-x-frame-option-background.js


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chrome.webRequest.onHeadersReceived.addListener(
  function (details) {
    for (var i = 0; i < details.responseHeaders.length; ++i) {
      if (details.responseHeaders[i].name.toLowerCase() == 'x-frame-options') {
        details.responseHeaders.splice(i, 1);
        return {
          responseHeaders: details.responseHeaders
        };
      }
    }
  }, {
    urls: ["<all_urls>"]
  }, ["blocking", "responseHeaders"]
);