Hi everyone, As of Firefox 68 I'm planning to turn off support for non-standard XMLDocument.load and XMLDocument.async APIs. These are really old APIs that allow developers to load an XML document over the network synchronously or asynchronously but were never standardized and implemented by other web engines, and have long been replaced by XMLHttpRequest.
On Beta65, XMLDocument.load() is being used on ~0.003% of top level page loads (see UseOfDOM3LoadMethod in https://georgf.github.io/usecounters/index.html#kind=page&group=DEPRECATED&channel=beta&version=65) and the setter of XMLDocument.async is used on ~0.009% ( https://georgf.github.io/usecounters/index.html#kind=page&group=XMLDOCUMENT&channel=beta&version=65). These numbers are a bit surprising since it looks like about three times as many pages set the async attribute without calling load() but setting async without calling load() has no side effects... We believe the usage is low enough to try to unship, but we're not yet removing the code. The unshipping is done by hiding both APIs behind a pref in https://bugzilla.mozilla.org/show_bug.cgi?id=332175 and https://bugzilla.mozilla.org/show_bug.cgi?id=1328138. Please let me know if you have any questions or concerns. Thanks, -- Ehsan _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
