You could subclass Request and write your own custom handler for it.
Changing this in the library would probably break a bunch of sites.
To subclass:
var Request.JavaScript = new Class({
Extends: Request,
processScripts: function(text){
if (this.options.evalResponse &&
(/(ecma|java)script/).test(this.getHeader('Content-type'))) return
$exec(text);
return text.stripScripts(this.options.evalScripts);
}
});
On Wed, Nov 11, 2009 at 2:48 AM, visola <[email protected]> wrote:
>
> So the only way to not evaluate a javascript file (.js extension) is
> changing its extension to something else so the default behaviour of
> the server won't affect my code in the client?
> Shouldn't that be optional? Or the scenario I'm working on is
> completely unreal?
> Aren't there times where one would like to download a javascript to
> execute it later or in some other scope/context?
>
> On Nov 10, 1:33 pm, Aaron Newton <[email protected]> wrote:
> > Here's what the docs say:
> >
> > evalResponse - (*boolean*: defaults to false) If set to true, the entire
> >
> > > response will be evaluated. Responses with javascript content-type will
> be
> > > evaluated automatically.
> >
> > So this is working properly.
> >
> > I think the intent here is to have the ability to return javascript to
> > request. If your headers are set properly, it evaluates it, but if your
> > headers are not set properly, and you can't easily change it, you can
> force
> > it to evaluate it.
> >
> > On Tue, Nov 10, 2009 at 2:57 AM, visola <[email protected]> wrote:
> >
> > > Yes. I wrote a simple test case to show what is going wrong.
> > > Put this in a .js file:
> >
> > > console.log('Message from beyond!');
> >
> > > Then write a simple HTML with nothing in it and with the following
> > > script (don't forget mootools :-) ):
> > > var req = new Request({
> > > url : 'printMessage.js',
> > > async : false,
> > > onSuccess : function (responseText) {
> > > try {
> > > var toRun = '(function () {';
> > > toRun += 'try {';
> > > toRun += responseText;
> > > toRun += '} catch (e) {console.log(e);}';
> > > toRun += '})();';
> >
> > > console.log('This should be logged before.');
> > > eval(toRun);
> > > console.log('This should be logged after');
> > > } catch (e) {console.log(e);}
> > > }
> > > }).send();
> >
> > > The console will print 'Message from beyond!' twice, in the following
> > > order:
> > > Message from beyond! <- after loading
> > > This should be logged before. <- onSuccess
> > > Message from beyond! <- eval
> > > This should be logged after <- finish onSuccess
> >
> > > I didn't set evalScript true or did nothing that could change the
> > > default behaviour.
> > > I'm using mootools 1.2.4 (latest download from site) and I downloaded
> > > the source to check what may be going wrong. And here is what I found
> > > out:
> > > The content type of a .js file would always contain the word
> > > javascript, in my Apache server it was "application/javascript" and in
> > > Jetty, as I stated before, application/x-javascript.
> > > In mootools, line 4030, I found this:
> > > if (this.options.evalResponse || (/(ecma|java)script/).test
> > > (this.getHeader('Content-type'))) return $exec(text);
> >
> > > From what I understand, that OR operator should be replaced by an AND
> > > operator, otherwise, even if evalResponse is false, it will execute
> > > the second statement if content-type contains the javascript word.
> > > Isn't that correct?
> >
> > > Thanks for the quick answer.
> > > Best regards.
> >
> > > On Nov 9, 4:33 pm, Oskar Krawczyk <[email protected]> wrote:
> > > > That is very odd, as both, evalScripts and evalResponse are set to
> > > > false by default. Are you sure you're not setting either to true?
> >
> > > > On 9 Nov 2009, at 18:14, visola wrote:
> >
> > > > > I'm having a problem loading a javascript file using Request. My
> > > > > scenario is something like this:
> > > > > I want to load the file as text and then run it manually in a more
> > > > > restricted context (inside a "(function () { // file here})();" for
> > > > > example).
> >
> > > > > But when Request finishes loading the file, it automatically runs
> it.
> > > > > So after that, when I call it manually, it will run twice. From
> what I
> > > > > saw in the code, Request calls "processScripts" that will execute
> > > > > javascript files (identified by the content header - in my case
> > > > > "application/x-javascript") even if I set evalResponse to false
> (the
> > > > > default option).
> >
> > > > > My workaround is to name my files something else (without the .js
> > > > > extension), otherwise my server will send it with the javascript
> > > > > header and MooTools will execute it after downloading it.
> >
> > > > > Is there any other workaround for this? Shouldn't evalResponse be
> true
> > > > > by default and when needed, setting it to false would avoid
> executing
> > > > > scripts after loading them?
> >
> > > > > Best regards.
>
