[Webkit-unassigned] [Bug 140188] New: HTTP body/bodystream (e.g., POST form data) is missing in WKNavigationDelegate callbacks

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=140188

            Bug ID: 140188
           Summary: HTTP body/bodystream (e.g., POST form data) is missing
                    in WKNavigationDelegate callbacks
    Classification: Unclassified
           Product: WebKit
           Version: 528+ (Nightly build)
          Hardware: iOS
                OS: All
            Status: NEW
          Severity: Major
          Priority: P2
         Component: WebKit2
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: stuartmorgan at chromium.org

Spun off of bug 1377299, POST data and any other HTTPBody or HTTPBodyStream is missing from NSURLRequest objects provided in the WKNavigationDelegate.

STR:
- Implement a WKNavigationDelegate
- Submit a form
- In webView:decidePolicyForNavigationAction:decisionHandler:, try to extract the form data via navigationAction.request.HTTPBody

None of the data is there (apparently by design, per comment 5 in the other bug).


This is a serious problem for Chromium, since we implement our own back/forward handling (for a variety of reasons, a significant one being the ability to sync tabs with history across devices, and to re-create tabs with full history across cold launches of the app--since there's no way to edit the history of a WKWebView, only read it, maintaining our own stack is our only option). This bug means that going back or forward to a page that includes any kind of HTTP body will fail to work correctly.

This is also filed as rdar://18399639

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