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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - WKWebView should expose _loadAlternateHTMLString:baseURL:forUnreachableURL:"
href="https://bugs.webkit.org/show_bug.cgi?id=144912">144912</a>
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<th>Summary</th>
<td>WKWebView should expose _loadAlternateHTMLString:baseURL:forUnreachableURL:
</td>
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<th>Classification</th>
<td>Unclassified
</td>
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<th>Product</th>
<td>WebKit
</td>
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<th>Version</th>
<td>528+ (Nightly build)
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<th>Hardware</th>
<td>Unspecified
</td>
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<th>OS</th>
<td>Unspecified
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>Normal
</td>
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<th>Priority</th>
<td>P2
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<th>Component</th>
<td>WebKit2
</td>
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<th>Assignee</th>
<td>webkit-unassigned@lists.webkit.org
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<th>Reporter</th>
<td>stefan@arentz.ca
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<pre>Exposing WKWebView#_loadAlternateHTMLString:baseURL:forUnreachableURL: would allow people to us show error messages in-content while maintaining a sane BackForwardList.
The problem with the alternatives, loadHTML or loadRequest from an embedded HTTP Server, do not play well with the (read-only) BackForwardList.
When presenting an error with loadHTML, it will *replace* the current page you are on.
When presenting an error with loadRequest, either from embedded server or file: URL, it will generate a new entry in the BackForwardList that you cannot get rid of.
The _loadAlternateHTMLString:baseURL:forUnreachableURL API seems to add the failing page to the BackForwardList while presenting alternative content, like an error message. This means a call to reloadFromOrigin will simply retry the page and leave the BackForwardList in a good state that makes sense.</pre>
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