问题
I'm using chrome.webRequest api to intercept xhr's and redirect to a saved blob i have in chrome.storage.local and get this error:
XMLHttpRequest cannot load http://test.com/bla.xml. The request was redirected
to a URL ('data:text/xml;base64,sdfkldsfjdslfjsfsjf') which has a disallowed
scheme for cross-origin requests.
the chrome.webRequest api states that "Redirections to non-HTTP schemes such as data: are allowed."
I've tried adding data:* or : to the permissions in the manifest with no luck.
回答1:
Redirecting to data:-URIs is fully supported by the webRequest API (and you don't need the non-existent data:* permission for it).
Your requests failed because data:-URI access through XMLHttpRequest was not supported until Chrome 39. (Starting in Chrome 39, you will be able to fetch data:-URIs using XMLHttpRequest, see http://crbug.com/308768 for more info).
来源：https://stackoverflow.com/questions/24171162/chrome-webrequest-cross-origin-disallowed-scheme-on-redirect-to-data