A debug build shows we're failing this check: ``` NS_ENSURE_TRUE(scSize <= (uint32_t)maxStateObjSize, NS_ERROR_ILLEGAL_VALUE); ``` Here: https://searchfox.org/mozilla-central/source/docshell/base/nsDocShell.cpp#10940 And indeed, changing the `browser.history.maxStateObjectSize` pref does fix this.
Bug 1542673 Comment 2 Edit History
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A debug build shows we're failing this check: ``` NS_ENSURE_TRUE(scSize <= (uint32_t)maxStateObjSize, NS_ERROR_ILLEGAL_VALUE); ``` Here: https://searchfox.org/mozilla-central/rev/6db0a6a56653355fcbb25c4fa79c6e7ffc6f88e9/docshell/base/nsDocShell.cpp#10940 And indeed, changing the `browser.history.maxStateObjectSize` pref does fix this.