40947 2010-06-21 14:57:28 -0700 REGRESSION (r57544): XMLHttpRequest POSTed multipart/form-data wrongfully gets a charset appended 2010-08-31 19:47:49 -0700 1 1 1 Unclassified WebKit XML 528+ (Nightly build) All All RESOLVED FIXED InRadar, Regression P1 Normal --- 1 layton ap ap commit-queue cshu fishd oldest_to_newest 240909 0 layton 2010-06-21 14:57:28 -0700 Creating an XHR POST request while setting a "Content-Type" header value of "multipart/form-data; boundary=----MISFormBoundaryMTCcH1pthhYPYEpV" If there is no charset specified in the header, WebKit now automatically appends a charset value to the END of the content type header before sending the request to the remote server. Current Behaviour: WebKit appends "; charset=UTF-8" to the end of the "Content-Type" header if not explicitly set. On "multipart/form-data" POST request, this generates an invalid request, as the charset appears after the boundary parameter: "multipart/form-data; boundary=----MISFormBoundaryMTCcH1pthhYPYEpV" becomes "multipart/form-data; boundary=----MISFormBoundaryMTCcH1pthhYPYEpV; charset=UTF-8" Desired Behaviour: If not explicitly specified, WebKit should not append the charset parameter at the end, but inject it BEFORE the boundary parameter: "multipart/form-data; boundary=----MISFormBoundaryMTCcH1pthhYPYEpV" should become "multipart/form-data; charset=UTF-8; boundary=----MISFormBoundaryMTCcH1pthhYPYEpV" This results in a request which can be correctly parsed by the web server. 241373 1 ap 2010-06-22 11:56:19 -0700 My reading of XMLHttpRequest2 spec draft is that charset is never appended to Content-Type specified via setRequestHeader(), it's only corrected if it was set incorrectly. "If a Content-Type header is set using setRequestHeader() whose value is a valid MIME type and has a charset parameter whose value is not a case-insensitive match for encoding, and encoding is not null, set all the charset parameters of the Content-Type header to encoding." 242162 2 ap 2010-06-23 17:01:14 -0700 <rdar://problem/8124723> 272533 3 66149 ap 2010-08-31 17:41:27 -0700 Created attachment 66149 proposed fix The new behavior matches the spec, but doesn't quite match Firefox 3.6.8, which seem to always set a charset (but it sets it as second parameter, right after media type). I think that the spec makes more sense, and it's closer to what Safari 4 was doing. 272577 4 66149 abarth 2010-08-31 19:24:37 -0700 Comment on attachment 66149 proposed fix View in context: https://bugs.webkit.org/attachment.cgi?id=66149&action=prettypatch > WebCore/xml/XMLHttpRequest.cpp:136 > +static void replaceCharsetInMediaType(String& mediaType, const String& charsetValue) > { > unsigned int pos = 0, len = 0; Declare on separate lines? 272588 5 66149 commit-queue 2010-08-31 19:47:44 -0700 Comment on attachment 66149 proposed fix Clearing flags on attachment: 66149 Committed r66568: <http://trac.webkit.org/changeset/66568> 272589 6 commit-queue 2010-08-31 19:47:49 -0700 All reviewed patches have been landed. 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