[Proto-Scripty] Re: How is the MIME boundary set with HTML5 FormData and Ajax.Request()?
>
> How can I get the contentType set to include the MIME boundary used by the
> HTML5 FormData object?
>
I've done a little more investigating, and if I make this change to
prototype.js then it fixes the problem:
diff --git a/js/prototype.js b/js/prototype.js
index cc89daf..70e2e58 100644
--- a/js/prototype.js
+++ b/js/prototype.js
@@ -1762,8 +1762,6 @@ Ajax.Request = Class.create(Ajax.Base, {
};
if (this.method == 'post') {
- headers['Content-type'] = this.options.contentType +
-(this.options.encoding ? '; charset=' + this.options.encoding : ''
);
/* Force "Connection: close" for older Mozilla browsers to work
* around a bug where XMLHttpRequest sends an incorrect
Is there any way to tell Prototype to leave the HTTP Content-Type unset?
It looks like jQuery handles this by having contentType set to false, but I
can't see how Prototype handles it.
Thanks,
Adam.
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[Proto-Scripty] How is the MIME boundary set with HTML5 FormData and Ajax.Request()?
Hi all,
I am struggling a bit to get a HTML5 FormData object submitting with
Prototype's Ajax.Request().
Because the form data needs to be submitted as multipart/form-data, I need
to set the Content-Type to include the MIME boundary, otherwise the
receiving end can't decode the multipart/form-data content.
I am doing something like this:
var d = new FormData();
d.append('name', $F('name'));
d.append('type', 'blah');
d.append('filecontent', $('file').files[0]);
new Ajax.Request('url', {
method: 'post',
//contentType: 'multipart/form-data', // need MIME boundary
postBody: d,
onSuccess: function(r) { }
});
If I leave out the contentType parameter, then the form gets submitted as
application/x-www-form-urlencoded, but the content is in
multipart/form-data so it is not possible to decode it. If I set the
contentType to multipart/form-data then the recipient complains that the
MIME boundary is missing from the HTTP Content-Type header.
How can I get the contentType set to include the MIME boundary used by the
HTML5 FormData object?
Many thanks,
Adam.
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