In r161478, I updated the test case to compare the file size of result MHTML with the size of returned data.
But as the result contains a 'Date' field and the length of the field may be different.
For example, if the day is from 1 to 9, the data length is 496 but if the date is from 10 to 31, the data length is 497.
Created attachment 221099 [details]
Comment on attachment 221099 [details]
Clearing flags on attachment: 221099
Committed r161943: <http://trac.webkit.org/changeset/161943>
All reviewed patches have been landed. Closing bug.